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-3=5(y-7)+3y

We move all terms to the left:

-3-(5(y-7)+3y)=0

We calculate terms in parentheses: -(5(y-7)+3y), so:We get rid of parentheses

5(y-7)+3y

We add all the numbers together, and all the variables

3y+5(y-7)

We multiply parentheses

3y+5y-35

We add all the numbers together, and all the variables

8y-35

Back to the equation:

-(8y-35)

-8y+35-3=0

We add all the numbers together, and all the variables

-8y+32=0

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

-8y=-32

y=-32/-8

y=+4

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