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-12.48=18.43+7.6r=-5.56+9.1r
We move all terms to the left:
-12.48-(18.43+7.6r)=0
We add all the numbers together, and all the variables
-(7.6r+18.43)-12.48=0
We get rid of parentheses
-7.6r-18.43-12.48=0
We add all the numbers together, and all the variables
-7.6r-30.91=0
We move all terms containing r to the left, all other terms to the right
-7.6r=30.91
r=30.91/-7.6
r=-4+0.51/7.6
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