High School

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Select the correct answer.

Which value of [tex]$x$[/tex] makes the equation true?

[tex]x + 7 = -9[/tex]

A. -16
B. -2
C. 2
D. 16

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's how you can do it step-by-step:

1. Start with the original equation:
[tex]\[
x + 7 = -9
\][/tex]

2. To isolate [tex]\(x\)[/tex], subtract 7 from both sides of the equation. This will help get rid of the [tex]\(+7\)[/tex] on the left side:
[tex]\[
x + 7 - 7 = -9 - 7
\][/tex]

3. Simplify both sides of the equation:
[tex]\[
x = -16
\][/tex]

Therefore, the value of [tex]\(x\)[/tex] that makes the equation true is [tex]\(-16\)[/tex]. The correct answer is:

A. [tex]\(-16\)[/tex]

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