3(n+7)-8=2(n+1)-12

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Solution for 3(n+7)-8=2(n+1)-12 equation:


Simplifying
3(n + 7) + -8 = 2(n + 1) + -12

Reorder the terms:
3(7 + n) + -8 = 2(n + 1) + -12
(7 * 3 + n * 3) + -8 = 2(n + 1) + -12
(21 + 3n) + -8 = 2(n + 1) + -12

Reorder the terms:
21 + -8 + 3n = 2(n + 1) + -12

Combine like terms: 21 + -8 = 13
13 + 3n = 2(n + 1) + -12

Reorder the terms:
13 + 3n = 2(1 + n) + -12
13 + 3n = (1 * 2 + n * 2) + -12
13 + 3n = (2 + 2n) + -12

Reorder the terms:
13 + 3n = 2 + -12 + 2n

Combine like terms: 2 + -12 = -10
13 + 3n = -10 + 2n

Solving
13 + 3n = -10 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
13 + 3n + -2n = -10 + 2n + -2n

Combine like terms: 3n + -2n = 1n
13 + 1n = -10 + 2n + -2n

Combine like terms: 2n + -2n = 0
13 + 1n = -10 + 0
13 + 1n = -10

Add '-13' to each side of the equation.
13 + -13 + 1n = -10 + -13

Combine like terms: 13 + -13 = 0
0 + 1n = -10 + -13
1n = -10 + -13

Combine like terms: -10 + -13 = -23
1n = -23

Divide each side by '1'.
n = -23

Simplifying
n = -23

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