12y+(1-7y)=31

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Solution for 12y+(1-7y)=31 equation: 



12y+(1-7y)=31

We move all terms to the left:

12y+(1-7y)-(31)=0

We add all the numbers together, and all the variables

12y+(-7y+1)-31=0

We get rid of parentheses

12y-7y+1-31=0

We add all the numbers together, and all the variables

5y-30=0

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

5y=30

y=30/5

y=6

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