12+3n=6n-6n

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Solution for 12+3n=6n-6n equation: 


Simplifying
12 + 3n = 6n + -6n

Combine like terms: 6n + -6n = 0
12 + 3n = 0

Solving
12 + 3n = 0

Solving for variable 'n'.

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

Add '-12' to each side of the equation.
12 + -12 + 3n = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 3n = 0 + -12
3n = 0 + -12

Combine like terms: 0 + -12 = -12
3n = -12

Divide each side by '3'.
n = -4

Simplifying
n = -4

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