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-4(-2r+6)-8=-88
We move all terms to the left:
-4(-2r+6)-8-(-88)=0
We add all the numbers together, and all the variables
-4(-2r+6)+80=0
We multiply parentheses
8r-24+80=0
We add all the numbers together, and all the variables
8r+56=0
We move all terms containing r to the left, all other terms to the right
8r=-56
r=-56/8
r=-7
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