Pre-Algebra Examples

$9 < x - 15 < 15$

Step 1

Add $15$ to each section of the inequality because it does not contain the variable we are trying to solve for.

$9 + 15 < x < 15 + 15$

Step 2

Add $9$ and $15$ .

$24 < x < 15 + 15$

Step 3

Add $15$ and $15$ .

$24 < x < 30$

Step 4