3-y=y-1

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Solution for 3-y=y-1 equation: 



3-y=y-1

We move all terms to the left:

3-y-(y-1)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

-1y-y+1+3=0

We add all the numbers together, and all the variables

-2y+4=0

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

-2y=-4

y=-4/-2

y=+2

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