-4(r+3)+8(-2r+8)=12

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Solution for -4(r+3)+8(-2r+8)=12 equation: 



-4(r+3)+8(-2r+8)=12

We move all terms to the left:

-4(r+3)+8(-2r+8)-(12)=0

We multiply parentheses

-4r-16r-12+64-12=0

We add all the numbers together, and all the variables

-20r+40=0

We move all terms containing r to the left, all other terms to the right

-20r=-40

r=-40/-20

r=+2

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