acoral2003
acoral2003 acoral2003
  • 20-08-2016
  • Mathematics
contestada

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

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Sierrawhite2000
Sierrawhite2000 Sierrawhite2000
  • 20-08-2016
-3(2r+7)=3
-6r + -42=3
+42 +42
-6r =45
Then all you do is divide
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Ckaranja
Ckaranja Ckaranja
  • 20-08-2016
-3(2r+7)=3
Opening the brackets;
-6r-21=3
-6r=3+21
-6r=24
r=-4
Answer Link

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