Answer :
To solve the equation [tex]\(x + 7 = -9\)[/tex] for [tex]\(x\)[/tex], we need to isolate [tex]\(x\)[/tex] on one side of the equation. Here are the steps:
1. Start with the equation:
[tex]\[
x + 7 = -9
\][/tex]
2. To isolate [tex]\(x\)[/tex], we need to get rid of the [tex]\(+7\)[/tex] on the left side. We can do this by subtracting 7 from both sides of the equation.
3. Subtract 7 from both sides:
[tex]\[
x + 7 - 7 = -9 - 7
\][/tex]
4. Simplify both sides:
[tex]\[
x = -16
\][/tex]
So, the value of [tex]\(x\)[/tex] that makes the equation true is [tex]\(-16\)[/tex]. Therefore, the correct answer is:
A. [tex]\(-16\)[/tex]
1. Start with the equation:
[tex]\[
x + 7 = -9
\][/tex]
2. To isolate [tex]\(x\)[/tex], we need to get rid of the [tex]\(+7\)[/tex] on the left side. We can do this by subtracting 7 from both sides of the equation.
3. Subtract 7 from both sides:
[tex]\[
x + 7 - 7 = -9 - 7
\][/tex]
4. Simplify both sides:
[tex]\[
x = -16
\][/tex]
So, the value of [tex]\(x\)[/tex] that makes the equation true is [tex]\(-16\)[/tex]. Therefore, the correct answer is:
A. [tex]\(-16\)[/tex]
