-3(n-1)=12

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Solution for -3(n-1)=12 equation: 


Simplifying
-3(n + -1) = 12

Reorder the terms:
-3(-1 + n) = 12
(-1 * -3 + n * -3) = 12
(3 + -3n) = 12

Solving
3 + -3n = 12

Solving for variable 'n'.

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

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

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

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

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

Simplifying
n = -3

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