3n+2n=12-n

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Solution for 3n+2n=12-n equation: 


Simplifying
3n + 2n = 12 + -1n

Combine like terms: 3n + 2n = 5n
5n = 12 + -1n

Solving
5n = 12 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
5n + n = 12 + -1n + n

Combine like terms: 5n + n = 6n
6n = 12 + -1n + n

Combine like terms: -1n + n = 0
6n = 12 + 0
6n = 12

Divide each side by '6'.
n = 2

Simplifying
n = 2

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