-13=-7y+4(y+2)

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Solution for -13=-7y+4(y+2) equation: 



-13=-7y+4(y+2)

We move all terms to the left:

-13-(-7y+4(y+2))=0



We calculate terms in parentheses: -(-7y+4(y+2)), so:

-7y+4(y+2)

We multiply parentheses

-7y+4y+8

We add all the numbers together, and all the variables

-3y+8

Back to the equation:

-(-3y+8)



We get rid of parentheses

3y-8-13=0

We add all the numbers together, and all the variables

3y-21=0

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

3y=21

y=21/3

y=7

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