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y=2x+1

x-y=-3
Is 
(2,5) a solution of the system?
Choose 1 answer:
(A) Yes
(B) 
No

y=2x+1 y=2 x+1 \newlinexy=3 x-y=-3 \newlineIs (2,5) (2,5) a solution of the system?\newlineChoose 11 answer:\newline(A) Yes\newline(B) No

Full solution

Q. y=2x+1 y=2 x+1 \newlinexy=3 x-y=-3 \newlineIs (2,5) (2,5) a solution of the system?\newlineChoose 11 answer:\newline(A) Yes\newline(B) No
  1. Substitute and Check First Equation: First, we will substitute the point (2,5)(2,5) into the first equation and check if it holds true. The first equation is y=2x+1y = 2x + 1. If we substitute x=2x=2 and y=5y=5, we get 5=2×2+15 = 2 \times 2 + 1.
  2. Verify First Equation: After performing the calculation, we find that 5=4+15 = 4 + 1, which simplifies to 5=55 = 5, which is true. Therefore, the point (2,5)(2,5) satisfies the first equation.
  3. Substitute and Check Second Equation: Next, we will substitute the point (2,5)(2,5) into the second equation and check if it holds true. The second equation is xy=3x - y = -3. If we substitute x=2x=2 and y=5y=5, we get 25=32 - 5 = -3.
  4. Verify Second Equation: After performing the calculation, we find that 25=32 - 5 = -3, which is also true. Therefore, the point (2,5)(2,5) satisfies the second equation as well.
  5. Solution to the System of Equations: Since the point (2,5)(2,5) satisfies both equations, it is a solution to the system of equations.

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