x^2-88=-7

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Solution for x^2-88=-7 equation: 


Simplifying
x2 + -88 = -7

Reorder the terms:
-88 + x2 = -7

Solving
-88 + x2 = -7

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '88' to each side of the equation.
-88 + 88 + x2 = -7 + 88

Combine like terms: -88 + 88 = 0
0 + x2 = -7 + 88
x2 = -7 + 88

Combine like terms: -7 + 88 = 81
x2 = 81

Simplifying
x2 = 81

Take the square root of each side:
x = {-9, 9}

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