(2n+18)=90

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Solution for (2n+18)=90 equation: 



(2n+18)=90

We move all terms to the left:

(2n+18)-(90)=0

We get rid of parentheses

2n+18-90=0

We add all the numbers together, and all the variables

2n-72=0

We move all terms containing n to the left, all other terms to the right

2n=72

n=72/2

n=36

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