82=(-15+7x)2

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Solution for 82=(-15+7x)2 equation: 



82=(-15+7x)2

We move all terms to the left:

82-((-15+7x)2)=0

We add all the numbers together, and all the variables

-((7x-15)2)+82=0



We calculate terms in parentheses: -((7x-15)2), so:

(7x-15)2

We multiply parentheses

14x-30

Back to the equation:

-(14x-30)



We get rid of parentheses

-14x+30+82=0

We add all the numbers together, and all the variables

-14x+112=0

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

-14x=-112

x=-112/-14

x=+8

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