4(r+4)=84

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



4(r+4)=84

We move all terms to the left:

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

We multiply parentheses

4r+16-84=0

We add all the numbers together, and all the variables

4r-68=0

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

4r=68

r=68/4

r=17

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