(x+7)(x+7)=(15+x)(x)

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Solution for (x+7)(x+7)=(15+x)(x) equation: 



(x+7)(x+7)=(15+x)(x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses ..

(+x^2+7x+7x+49)-((x+15)x)=0



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

(x+15)x

We multiply parentheses

x^2+15x

Back to the equation:

-(x^2+15x)



We get rid of parentheses

x^2-x^2+7x+7x-15x+49=0

We add all the numbers together, and all the variables

-1x+49=0

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

-x=-49

x=-49/-1

x=+49

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