3n-12=9n

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Solution for 3n-12=9n equation:


Simplifying
3n + -12 = 9n

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

Solving
-12 + 3n = 9n

Solving for variable 'n'.

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

Add '-9n' to each side of the equation.
-12 + 3n + -9n = 9n + -9n

Combine like terms: 3n + -9n = -6n
-12 + -6n = 9n + -9n

Combine like terms: 9n + -9n = 0
-12 + -6n = 0

Add '12' to each side of the equation.
-12 + 12 + -6n = 0 + 12

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

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

Divide each side by '-6'.
n = -2

Simplifying
n = -2

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