n-21=12

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Solution for n-21=12 equation: 


Simplifying
n + -21 = 12

Reorder the terms:
-21 + n = 12

Solving
-21 + n = 12

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 + n = 12 + 21

Combine like terms: -21 + 21 = 0
0 + n = 12 + 21
n = 12 + 21

Combine like terms: 12 + 21 = 33
n = 33

Simplifying
n = 33

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