-21+n=-9

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Solution for -21+n=-9 equation: 


Simplifying
-21 + n = -9

Solving
-21 + n = -9

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 = -9 + 21

Combine like terms: -21 + 21 = 0
0 + n = -9 + 21
n = -9 + 21

Combine like terms: -9 + 21 = 12
n = 12

Simplifying
n = 12

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