-21=n-21

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Solution for -21=n-21 equation:


Simplifying
-21 = n + -21

Reorder the terms:
-21 = -21 + n

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

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

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

Solving
0 = n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
0 + -1n = n + -1n
Remove the zero:
-1n = n + -1n

Combine like terms: n + -1n = 0
-1n = 0

Divide each side by '-1'.
n = 0

Simplifying
n = 0

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