-7(2r-4)=-84

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Solution for -7(2r-4)=-84 equation: 



-7(2r-4)=-84

We move all terms to the left:

-7(2r-4)-(-84)=0

We add all the numbers together, and all the variables

-7(2r-4)+84=0

We multiply parentheses

-14r+28+84=0

We add all the numbers together, and all the variables

-14r+112=0

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

-14r=-112

r=-112/-14

r=+8

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