(13+x)2=8

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Solution for (13+x)2=8 equation: 



(13+x)2=8

We move all terms to the left:

(13+x)2-(8)=0

We add all the numbers together, and all the variables

(x+13)2-8=0

We multiply parentheses

2x+26-8=0

We add all the numbers together, and all the variables

2x+18=0

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

2x=-18

x=-18/2

x=-9

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