SOLUTION: hey im doing absoloute value equations... the question is: "Solve each equation or inequality" |2d|+3=21

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Question 530858: hey im doing absoloute value equations...
the question is: "Solve each equation or inequality"
|2d|+3=21
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
|2d|+3=21


|2d|=21-3


|2d|=18


2d=18 or 2d=-18


d=18/2 or d=-18/2


d=9 or d=-9


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