40-5y=-3(8y-7)

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Solution for 40-5y=-3(8y-7) equation: 



40-5y=-3(8y-7)

We move all terms to the left:

40-5y-(-3(8y-7))=0



We calculate terms in parentheses: -(-3(8y-7)), so:

-3(8y-7)

We multiply parentheses

-24y+21

Back to the equation:

-(-24y+21)



We get rid of parentheses

-5y+24y-21+40=0

We add all the numbers together, and all the variables

19y+19=0

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

19y=-19

y=-19/19

y=-1

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