x^2+7=18

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Solution for x^2+7=18 equation: 


Simplifying
x2 + 7 = 18

Reorder the terms:
7 + x2 = 18

Solving
7 + x2 = 18

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 = 18 + -7

Combine like terms: 7 + -7 = 0
0 + x2 = 18 + -7
x2 = 18 + -7

Combine like terms: 18 + -7 = 11
x2 = 11

Simplifying
x2 = 11

Take the square root of each side:
x = {-3.31662479, 3.31662479}

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