n^2+4=20

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Solution for n^2+4=20 equation: 


Simplifying
n2 + 4 = 20

Reorder the terms:
4 + n2 = 20

Solving
4 + n2 = 20

Solving for variable 'n'.

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

Add '-4' to each side of the equation.
4 + -4 + n2 = 20 + -4

Combine like terms: 4 + -4 = 0
0 + n2 = 20 + -4
n2 = 20 + -4

Combine like terms: 20 + -4 = 16
n2 = 16

Simplifying
n2 = 16

Take the square root of each side:
n = {-4, 4}

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