-6+3n=21

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Solution for -6+3n=21 equation: 


Simplifying
-6 + 3n = 21

Solving
-6 + 3n = 21

Solving for variable 'n'.

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

Add '6' to each side of the equation.
-6 + 6 + 3n = 21 + 6

Combine like terms: -6 + 6 = 0
0 + 3n = 21 + 6
3n = 21 + 6

Combine like terms: 21 + 6 = 27
3n = 27

Divide each side by '3'.
n = 9

Simplifying
n = 9

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