12=8+-2n

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Solution for 12=8+-2n equation:


Simplifying
12 = 8 + -2n

Solving
12 = 8 + -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.
12 + 2n = 8 + -2n + 2n

Combine like terms: -2n + 2n = 0
12 + 2n = 8 + 0
12 + 2n = 8

Add '-12' to each side of the equation.
12 + -12 + 2n = 8 + -12

Combine like terms: 12 + -12 = 0
0 + 2n = 8 + -12
2n = 8 + -12

Combine like terms: 8 + -12 = -4
2n = -4

Divide each side by '2'.
n = -2

Simplifying
n = -2

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