Question

A. Solve each absolute value equation. /2.5pts
1)| 3x| = 9

Answer 1

Answer: x = 3 or x = -3

Explanation:

Absolute values make the answer always positive, as they cancel out the negative sign. So to solve an absolute value equation, we must solve for both the positive and negative of the answer.

3x = 9

3x = -9

x = 3 or x = -3

Answer 2

x = 3

or

x = -3

(explanation in the picture above)