3y-(y-1)=7

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Solution for 3y-(y-1)=7 equation: 



3y-(y-1)=7

We move all terms to the left:

3y-(y-1)-(7)=0

We get rid of parentheses

3y-y+1-7=0

We add all the numbers together, and all the variables

2y-6=0

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

2y=6

y=6/2

y=3

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