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Let’s check out your problem:
Solve for all values of
x
x
x
:
\newline
8
x
(
4
x
+
9
)
−
(
4
x
+
9
)
=
0
8 x(4 x+9)-(4 x+9)=0
8
x
(
4
x
+
9
)
−
(
4
x
+
9
)
=
0
\newline
Answer:
x
=
x=
x
=
View step-by-step help
Home
Math Problems
Algebra 1
Solve multi-step linear equations
Full solution
Q.
Solve for all values of
x
x
x
:
\newline
8
x
(
4
x
+
9
)
−
(
4
x
+
9
)
=
0
8 x(4 x+9)-(4 x+9)=0
8
x
(
4
x
+
9
)
−
(
4
x
+
9
)
=
0
\newline
Answer:
x
=
x=
x
=
Factor out common term:
Factor out the common term
(
4
x
+
9
)
(4x+9)
(
4
x
+
9
)
from both parts of the equation.
\newline
8
x
(
4
x
+
9
)
−
(
4
x
+
9
)
=
0
8x(4x+9) - (4x+9) = 0
8
x
(
4
x
+
9
)
−
(
4
x
+
9
)
=
0
\newline
(
4
x
+
9
)
(
8
x
−
1
)
=
0
(4x+9)(8x-1) = 0
(
4
x
+
9
)
(
8
x
−
1
)
=
0
Set
factors
equal:
Set each factor equal to zero to find the values of
x
x
x
.
\newline
First, set the first factor equal to zero:
\newline
4
x
+
9
=
0
4x + 9 = 0
4
x
+
9
=
0
Solve for x (
1
1
1
st factor):
Solve for x from the first factor.
\newline
4
x
+
9
=
0
4x + 9 = 0
4
x
+
9
=
0
\newline
4
x
=
−
9
4x = -9
4
x
=
−
9
\newline
x
=
−
9
4
x = -\frac{9}{4}
x
=
−
4
9
\newline
x
=
−
2.25
x = -2.25
x
=
−
2.25
Set second factor equal:
Now, set the second factor equal to zero:
\newline
8
x
−
1
=
0
8x - 1 = 0
8
x
−
1
=
0
Solve for x (
2
2
2
nd factor):
Solve for x from the second factor.
\newline
8
x
−
1
=
0
8x - 1 = 0
8
x
−
1
=
0
\newline
8
x
=
1
8x = 1
8
x
=
1
\newline
x
=
1
8
x = \frac{1}{8}
x
=
8
1
\newline
x
=
0.125
x = 0.125
x
=
0.125
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\newline
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______
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\newline
−
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\newline
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How many solutions does the following equation have?
\newline
5
x
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8
−
7
x
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−
4
x
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5
x
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\newline
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answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Question
How many solutions does the following equation have?
\newline
−
2
z
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+
7
z
=
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z
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7
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−
2
z
+
10
+
7
z
=
16
z
+
7
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
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(B) Exactly one solution
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(C) Infinitely many solutions
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Question
How many solutions does the following equation have?
\newline
7
(
y
−
8
)
=
7
y
+
42
7(y-8)=7y+42
7
(
y
−
8
)
=
7
y
+
42
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Posted 1 year ago
Question
How many solutions does the following equation have?
\newline
−
9
(
x
+
6
)
=
−
9
x
+
108
-9(x+6)=-9x+108
−
9
(
x
+
6
)
=
−
9
x
+
108
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Question
How many solutions does the following equation have?
\newline
−
6
(
x
+
7
)
=
−
4
x
−
2
-6(x+7)=-4x-2
−
6
(
x
+
7
)
=
−
4
x
−
2
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Posted 1 year ago
Question
How many solutions does the following equation have?
\newline
−
4
x
−
7
+
10
x
=
−
7
+
6
x
-4x-7+10x=-7+6x
−
4
x
−
7
+
10
x
=
−
7
+
6
x
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Question
How many solutions does the following equation have?
\newline
−
17
(
y
−
2
)
=
−
17
y
+
64
-17(y-2)=-17y+64
−
17
(
y
−
2
)
=
−
17
y
+
64
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
Get tutor help
Posted 1 year ago
Question
How many solutions does the following equation have?
\newline
9
z
−
6
+
7
z
=
16
z
−
6
9z-6+7z=16z-6
9
z
−
6
+
7
z
=
16
z
−
6
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
Get tutor help
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