7y+8=4y-1

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Solution for 7y+8=4y-1 equation: 



7y+8=4y-1

We move all terms to the left:

7y+8-(4y-1)=0

We get rid of parentheses

7y-4y+1+8=0

We add all the numbers together, and all the variables

3y+9=0

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

3y=-9

y=-9/3

y=-3

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