12=3n-3

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Solution for 12=3n-3 equation:


Simplifying
12 = 3n + -3

Reorder the terms:
12 = -3 + 3n

Solving
12 = -3 + 3n

Solving for variable 'n'.

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

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

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

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

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

Combine like terms: -3 + -12 = -15
-3n = -15

Divide each side by '-3'.
n = 5

Simplifying
n = 5

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