n-n+2n=20

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Solution for n-n+2n=20 equation: 


Simplifying
n + -1n + 2n = 20

Combine like terms: n + -1n = 0
0 + 2n = 20
2n = 20

Solving
2n = 20

Solving for variable 'n'.

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

Divide each side by '2'.
n = 10

Simplifying
n = 10

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