40=2(y+7)

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Solution for 40=2(y+7) equation: 



40=2(y+7)

We move all terms to the left:

40-(2(y+7))=0



We calculate terms in parentheses: -(2(y+7)), so:

2(y+7)

We multiply parentheses

2y+14

Back to the equation:

-(2y+14)



We get rid of parentheses

-2y-14+40=0

We add all the numbers together, and all the variables

-2y+26=0

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

-2y=-26

y=-26/-2

y=+13

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