3(n+7)+2(3n-8)=113

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Solution for 3(n+7)+2(3n-8)=113 equation:


Simplifying
3(n + 7) + 2(3n + -8) = 113

Reorder the terms:
3(7 + n) + 2(3n + -8) = 113
(7 * 3 + n * 3) + 2(3n + -8) = 113
(21 + 3n) + 2(3n + -8) = 113

Reorder the terms:
21 + 3n + 2(-8 + 3n) = 113
21 + 3n + (-8 * 2 + 3n * 2) = 113
21 + 3n + (-16 + 6n) = 113

Reorder the terms:
21 + -16 + 3n + 6n = 113

Combine like terms: 21 + -16 = 5
5 + 3n + 6n = 113

Combine like terms: 3n + 6n = 9n
5 + 9n = 113

Solving
5 + 9n = 113

Solving for variable 'n'.

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

Add '-5' to each side of the equation.
5 + -5 + 9n = 113 + -5

Combine like terms: 5 + -5 = 0
0 + 9n = 113 + -5
9n = 113 + -5

Combine like terms: 113 + -5 = 108
9n = 108

Divide each side by '9'.
n = 12

Simplifying
n = 12

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