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Original Question
Solve the following linear equation. -x+3=15 x=___Question
Solve the following linear equation
-8(5x+15)=7
X=
-8(5x+15)=7
X=
Answers
GPT-4o mini
To solve the equation \(-8(5x + 15) = 7\), we will follow these steps:
1. Distribute the -8 on the left side of the equation:
\[
-8 \cdot 5x - 8 \cdot 15 = 7
\]
This simplifies to:
\[
-40x - 120 = 7
\]
2. Next, we will isolate the term with \(x\) by adding 120 to both sides:
\[
-40x - 120 + 120 = 7 + 120
\]
This simplifies to:
\[
-40x = 127
\]
3. Now, divide both sides by -40 to solve for \(x\):
\[
x = \frac{127}{-40}
\]
This can also be written as:
\[
x = -\frac{127}{40}
\]
Thus, the solution to the equation is:
\[
x = -\frac{127}{40}
\]
1. Distribute the -8 on the left side of the equation:
\[
-8 \cdot 5x - 8 \cdot 15 = 7
\]
This simplifies to:
\[
-40x - 120 = 7
\]
2. Next, we will isolate the term with \(x\) by adding 120 to both sides:
\[
-40x - 120 + 120 = 7 + 120
\]
This simplifies to:
\[
-40x = 127
\]
3. Now, divide both sides by -40 to solve for \(x\):
\[
x = \frac{127}{-40}
\]
This can also be written as:
\[
x = -\frac{127}{40}
\]
Thus, the solution to the equation is:
\[
x = -\frac{127}{40}
\]