CPM Homework Help : CCG Problem 9-37

Remember that the absolute value of a number is its positive value. For example, $\left|-5\right|=5$ and $\left|5\right|=5$ . Use this understanding to solve the equations below, if possible. If there is no solution, explain how you know.

$\left|x\right|=6$
Answer (a):
$x=6$ or $-6$

$\left|x\right|=-2$
Answer (b):
No solution. An absolute value cannot be negative.

$\left|x+7\right|=10$
Answer (c):
$x=3$ or $-17$