2n+21+4n+27=180

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Solution for 2n+21+4n+27=180 equation: 



2n+21+4n+27=180

We move all terms to the left:

2n+21+4n+27-(180)=0

We add all the numbers together, and all the variables

6n-132=0

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

6n=132

n=132/6

n=22

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