n^2+5=21

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Solution for n^2+5=21 equation: 


Simplifying
n2 + 5 = 21

Reorder the terms:
5 + n2 = 21

Solving
5 + n2 = 21

Solving for variable 'n'.

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

Add '-5' to each side of the equation.
5 + -5 + n2 = 21 + -5

Combine like terms: 5 + -5 = 0
0 + n2 = 21 + -5
n2 = 21 + -5

Combine like terms: 21 + -5 = 16
n2 = 16

Simplifying
n2 = 16

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

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