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Vaselesa [24]
4 years ago
11

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

Mathematics
2 answers:
SVETLANKA909090 [29]4 years ago
7 0
-3(2r+7)=3
-6r + -42=3
+42 +42
-6r =45
Then all you do is divide
blsea [12.9K]4 years ago
7 0
-3(2r+7)=3
Opening the brackets;
-6r-21=3
-6r=3+21
-6r=24
r=-4
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