-4(-3r-7)=112

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Solution for -4(-3r-7)=112 equation: 



-4(-3r-7)=112

We move all terms to the left:

-4(-3r-7)-(112)=0

We multiply parentheses

12r+28-112=0

We add all the numbers together, and all the variables

12r-84=0

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

12r=84

r=84/12

r=7

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