SOLUTION: How do you solve |-3r|=9

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Question 1095104: How do you solve |-3r|=9
Answer by algebrahouse.com(1659) About Me  (Show Source):
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Absolute Value means distance from zero.

|-3r| = 9 is saying -3r is 9 away from zero.

The two numbers that are 9 away from zero are 9 and -9.

-3r = 9 or -3r = -9 {set -3r equal to 9 and -9}
r = -3 or r = 3 {solved for r}

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