-3(2r+7)=3 solve for r

asked Sep 19, 2017 166k views

1 vote

by Pex

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3 votes

-3(2r+7)=3
-6r + -42=3
+42 +42
-6r =45
Then all you do is divide

Matt Mangold answered Sep 20, 2017

6.5k points

5 votes

-3(2r+7)=3
Opening the brackets;
-6r-21=3
-6r=3+21
-6r=24
r=-4

Fschaper answered Sep 23, 2017

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