x^2+16=20

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Solution for x^2+16=20 equation: 


Simplifying
x2 + 16 = 20

Reorder the terms:
16 + x2 = 20

Solving
16 + x2 = 20

Solving for variable 'x'.

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

Add '-16' to each side of the equation.
16 + -16 + x2 = 20 + -16

Combine like terms: 16 + -16 = 0
0 + x2 = 20 + -16
x2 = 20 + -16

Combine like terms: 20 + -16 = 4
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

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