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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], follow these simple steps:

1. Identify the equation: You have [tex]\(x + 7 = -9\)[/tex].

2. Isolate [tex]\(x\)[/tex]: To find [tex]\(x\)[/tex], you need to get it by itself on one side of the equation. You can do this by eliminating the [tex]\(+7\)[/tex] that's added to [tex]\(x\)[/tex].

3. Subtract 7 from both sides: To cancel out the [tex]\(+7\)[/tex], subtract 7 from both sides of the equation.

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

This simplifies to:

[tex]\[
x = -16
\][/tex]

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

Now, let's match this with the choices given:

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

The correct answer is A. -16.

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