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(49)+(42+3y)=180
We move all terms to the left:
(49)+(42+3y)-(180)=0
We add all the numbers together, and all the variables
(3y+42)+49-180=0
We add all the numbers together, and all the variables
(3y+42)-131=0
We get rid of parentheses
3y+42-131=0
We add all the numbers together, and all the variables
3y-89=0
We move all terms containing y to the left, all other terms to the right
3y=89
y=89/3
y=29+2/3
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