(x+7)2=84

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Solution for (x+7)2=84 equation: 



(x+7)2=84

We move all terms to the left:

(x+7)2-(84)=0

We multiply parentheses

2x+14-84=0

We add all the numbers together, and all the variables

2x-70=0

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

2x=70

x=70/2

x=35

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