n^2-21=60

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Solution for n^2-21=60 equation: 


Simplifying
n2 + -21 = 60

Reorder the terms:
-21 + n2 = 60

Solving
-21 + n2 = 60

Solving for variable 'n'.

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

Add '21' to each side of the equation.
-21 + 21 + n2 = 60 + 21

Combine like terms: -21 + 21 = 0
0 + n2 = 60 + 21
n2 = 60 + 21

Combine like terms: 60 + 21 = 81
n2 = 81

Simplifying
n2 = 81

Take the square root of each side:
n = {-9, 9}

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