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Solve for r: -5 = 7 + 3r
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4 votes
Solve for r:

-5 = 7 + 3r

User Csaladenes
by
8.2k points

2 Answers

5 votes

-5=7+3r\ \ \ \ \ \ |combine\ like\ terms\\\\-5-7=3r\\\\-12=3r\ \ \ \ \ \ \ |:3\\\\r=-4
User Idish
by
8.2k points
6 votes
So,

-5 = 7 + 3r
(subtract 7 from both sides)
-12 = 3r
(divide both sides by 3)
-4 = r
User Onusopus
by
9.2k points
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