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n+(2n+16)=180
We move all terms to the left:
n+(2n+16)-(180)=0
We get rid of parentheses
n+2n+16-180=0
We add all the numbers together, and all the variables
3n-164=0
We move all terms containing n to the left, all other terms to the right
3n=164
n=164/3
n=54+2/3
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