9n+9n=90

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Solution for 9n+9n=90 equation: 


Simplifying
9n + 9n = 90

Combine like terms: 9n + 9n = 18n
18n = 90

Solving
18n = 90

Solving for variable 'n'.

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

Divide each side by '18'.
n = 5

Simplifying
n = 5

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