a+12+2a+57=180

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Solution for a+12+2a+57=180 equation: 



a+12+2a+57=180

We move all terms to the left:

a+12+2a+57-(180)=0

We add all the numbers together, and all the variables

3a-111=0

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

3a=111

a=111/3

a=37

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