x^2+7=16

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Solution for x^2+7=16 equation: 


Simplifying
x2 + 7 = 16

Reorder the terms:
7 + x2 = 16

Solving
7 + x2 = 16

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + x2 = 16 + -7

Combine like terms: 7 + -7 = 0
0 + x2 = 16 + -7
x2 = 16 + -7

Combine like terms: 16 + -7 = 9
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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