4(3r+3)=84

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Solution for 4(3r+3)=84 equation: 



4(3r+3)=84

We move all terms to the left:

4(3r+3)-(84)=0

We multiply parentheses

12r+12-84=0

We add all the numbers together, and all the variables

12r-72=0

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

12r=72

r=72/12

r=6

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