n-21=-21

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Solution for n-21=-21 equation: 


Simplifying
n + -21 = -21

Reorder the terms:
-21 + n = -21

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

Combine like terms: -21 + 21 = 0
0 + n = -21 + 21
n = -21 + 21

Combine like terms: -21 + 21 = 0
n = 0

Solving
n = 0

Solving for variable 'n'.

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

Simplifying
n = 0

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