3y-4=4y-7

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Solution for 3y-4=4y-7 equation: 



3y-4=4y-7

We move all terms to the left:

3y-4-(4y-7)=0

We get rid of parentheses

3y-4y+7-4=0

We add all the numbers together, and all the variables

-1y+3=0

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

-y=-3

y=-3/-1

y=+3

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