90+(n+18)+(2n)=180

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Solution for 90+(n+18)+(2n)=180 equation: 



90+(n+18)+(2n)=180

We move all terms to the left:

90+(n+18)+(2n)-(180)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

2n+n+18-90=0

We add all the numbers together, and all the variables

3n-72=0

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

3n=72

n=72/3

n=24

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