0=-3n+12+-9n

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Solution for 0=-3n+12+-9n equation: 


Simplifying
0 = -3n + 12 + -9n

Reorder the terms:
0 = 12 + -3n + -9n

Combine like terms: -3n + -9n = -12n
0 = 12 + -12n

Solving
0 = 12 + -12n

Solving for variable 'n'.

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

Add '12n' to each side of the equation.
0 + 12n = 12 + -12n + 12n
Remove the zero:
12n = 12 + -12n + 12n

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

Divide each side by '12'.
n = 1

Simplifying
n = 1

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