7n+12-3n=132

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Solution for 7n+12-3n=132 equation:


Simplifying
7n + 12 + -3n = 132

Reorder the terms:
12 + 7n + -3n = 132

Combine like terms: 7n + -3n = 4n
12 + 4n = 132

Solving
12 + 4n = 132

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 + 4n = 132 + -12

Combine like terms: 12 + -12 = 0
0 + 4n = 132 + -12
4n = 132 + -12

Combine like terms: 132 + -12 = 120
4n = 120

Divide each side by '4'.
n = 30

Simplifying
n = 30

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