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Solve a system of equations in three variables using elimination

Solve the system of equations.

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y = -8x - 6

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y = -3x - 1

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Solve the system of equations.

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y = 5x - 1

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y = 9x - 9

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Solve the system of equations.

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-x + 4y = 18

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6x - y = 7

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Solve the system of equations.

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8x - 4y = -8

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x + 3y = 20

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Which equation has the solution

x=3

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1

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1

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3

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4

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3 x+2=11

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5 x+1=10

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2 x-5=15

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4 x-3=12

Solve the system of equations by elimination.

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3x + 2y + 2z = -20

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-x + 2y - 2z = -4

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x + y + 3z = 2

Solve the system of equations by elimination.

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x - 3y + 3z = 9

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x + 2y - 2z = -16

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3x - 3y + z = -9

Solve the system of equations by elimination.

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2x + y + z = -4

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-x + y - z = 4

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2x + 3y + z = -2

Solve the system of equations by elimination.

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2x - 3y - z = -11

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-x - y - z = -11

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x - 2y - 2z = -10

Solve the system of equations by elimination.

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-x - 3y - 2z = -20

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-2x - y + 3z = -16

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x - 2y - 2z = -13

Solve the system of equations by elimination.

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x - 2y - 3z = -3

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x + 2y + 2z = -2

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-x + y + z = 2

Solve the system of equations by elimination.

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-x - y - z = 8

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x + 2y - 3z = 13

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3x + 2y + 2z = -20

Solve the system of equations by elimination.

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2x - 3y + 2z = 16

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2x + 3y + 2z = 16

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-3x + 2y + 2z = -9

Solve the system of equations by elimination.

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-3x + y + z = 5

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-2x - y + 2z = -19

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2x + 2y - z = 18

Solve the system of equations by elimination.

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-3x + 2y - z = -16

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-3x + y - 2z = -20

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x + 2y - 2z = 6

Solve the system of equations by elimination.

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-x - 3y + 3z = -11

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x + 2y + z = 2

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3x - 2y + 2z = 0

Solve the system of equations by elimination.

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3x + y - 3z = 2

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3x - 3y - z = -14

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x - 2y + 2z = 6

Solve the system of equations by elimination.

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2x - y + z = -6

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3x - 2y + 2z = -4

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-x + 3y - 2z = -20

Solve the system of equations by elimination.

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2x + 3y - 2z = 10

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3x - 2y - z = -6

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-3x - 2y - 2z = 10

Solve the system of equations by elimination.

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-2x + y + 3z = 2

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x + y + 2z = -13

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3x + 3y - 3z = 15

Solve the system of equations by elimination.

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-2x - 3y + z = 18

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-x + 2y - 2z = -17

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-2x + y - 2z = -13

Solve the system of equations by elimination.

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x - 2y - 2z = 7

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3x - 2y - z = -5

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2x - 2y + 2z = 8

Solve the system of equations by elimination.

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2x - y - z = -4

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-2x - 3y - 2z = -16

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2x + y - 2z = 16

Solve the system of equations by elimination.

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2x - 2y - z = -6

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-x - 3y + 3z = -6

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-x + y + z = 6

Solve the system of equations by elimination.

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-2x - 3y + 3z = -19

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3x + y + 2z = -16

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2x - y + 2z = -10

Solve the system of equations by elimination.

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x - 3y - 2z = -20

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x - 3y + z = -8

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2x + 3y - 3z = 9

Solve the system of equations by elimination.

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-2x - 2y + z = 9

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-2x - 2y - z = 15

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-3x - y + 2z = 12

Solve the system of equations by elimination.

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-3x + y - 2z = 3

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2x - y + 3z = -18

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x + y + 2z = -9

Solve the system of equations by elimination.

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-3x - y + z = -2

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-2x - 2y + 2z = 20

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-x + y + 2z = -1

Solve the system of equations by elimination.

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3x + 3y - 2z = -14

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x - y + 2z = 20

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3x + y - 3z = -15

Solve the system of equations by elimination.

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3x - y + 2z = -1

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3x + y + 3z = 20

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-x + y - 3z = -6

Solve the system of equations by elimination.

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2x - y + z = -14

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x - y + z = -14

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3x + y + 3z = -10

Solve the system of equations by elimination.

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3x - y - z = 7

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-2x + y + 3z = -7

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2x - 2y + z = 14

Solve the system of equations by elimination.

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x + 2y - 2z = -18

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-3x + 2y + 2z = -2

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-x + 3y - 2z = -20

Solve the system of equations by elimination.

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2x - 3y - z = 1

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3x + 3y - 2z = -12

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-2x - y - 2z = 16

Solve the system of equations.

14x + 5y = 31

2x - 3y = -29

At the beginning of the season, MacDonald had to remove

5

orange trees from his farm. Each of the remaining trees produced

210

oranges for a total harvest of

41,790

t

is the initial number of trees on MacDonald's farm, which of the following equations best describes the situation?

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1

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41,790(t-5)=200

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210(t+5)=41,790

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210 t-5=41,790

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210(t-5)=41,790

Which equation has the solution

x=8

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5 x+2=42

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2 x+7=24

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4 x-1=55

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7 x-2=-54

Which equation has the solution

x=7

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7 x+3=52

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5 x-7=68

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6 x+2=47

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2 x-4=-10

Solve the system of equations by elimination.

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x - 3y - 2z = 10

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3x + 2y + 2z = 14

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2x - 3y - 2z = 16

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