(r-8)4=12

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Solution for (r-8)4=12 equation: 



(r-8)4=12

We move all terms to the left:

(r-8)4-(12)=0

We multiply parentheses

4r-32-12=0

We add all the numbers together, and all the variables

4r-44=0

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

4r=44

r=44/4

r=11

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