(x+15)2-100=0

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Solution for (x+15)2-100=0 equation: 



(x+15)2-100=0

We multiply parentheses

2x+30-100=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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