2n+n=90

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Solution for 2n+n=90 equation: 


Simplifying
2n + n = 90

Combine like terms: 2n + n = 3n
3n = 90

Solving
3n = 90

Solving for variable 'n'.

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

Divide each side by '3'.
n = 30

Simplifying
n = 30

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