-r-4(3r+2)=-86

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Solution for -r-4(3r+2)=-86 equation: 



-r-4(3r+2)=-86

We move all terms to the left:

-r-4(3r+2)-(-86)=0

We add all the numbers together, and all the variables

-1r-4(3r+2)+86=0

We multiply parentheses

-1r-12r-8+86=0

We add all the numbers together, and all the variables

-13r+78=0

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

-13r=-78

r=-78/-13

r=+6

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