2n+4-n=12

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Solution for 2n+4-n=12 equation: 


Simplifying
2n + 4 + -1n = 12

Reorder the terms:
4 + 2n + -1n = 12

Combine like terms: 2n + -1n = 1n
4 + 1n = 12

Solving
4 + 1n = 12

Solving for variable 'n'.

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

Add '-4' to each side of the equation.
4 + -4 + 1n = 12 + -4

Combine like terms: 4 + -4 = 0
0 + 1n = 12 + -4
1n = 12 + -4

Combine like terms: 12 + -4 = 8
1n = 8

Divide each side by '1'.
n = 8

Simplifying
n = 8

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