X^2+4x=x^2-28

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Solution for X^2+4x=x^2-28 equation: 



X^2+4X=X^2-28

We move all terms to the left:

X^2+4X-(X^2-28)=0

We get rid of parentheses

X^2-X^2+4X+28=0

We add all the numbers together, and all the variables

4X+28=0

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

4X=-28

X=-28/4

X=-7

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