2y+y+42=180

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Solution for 2y+y+42=180 equation: 



2y+y+42=180

We move all terms to the left:

2y+y+42-(180)=0

We add all the numbers together, and all the variables

3y-138=0

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

3y=138

y=138/3

y=46

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