4r-2(-5r-3)=-64

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Solution for 4r-2(-5r-3)=-64 equation: 



4r-2(-5r-3)=-64

We move all terms to the left:

4r-2(-5r-3)-(-64)=0

We add all the numbers together, and all the variables

4r-2(-5r-3)+64=0

We multiply parentheses

4r+10r+6+64=0

We add all the numbers together, and all the variables

14r+70=0

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

14r=-70

r=-70/14

r=-5

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