-20=2(y+5)-7y

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Solution for -20=2(y+5)-7y equation: 



-20=2(y+5)-7y

We move all terms to the left:

-20-(2(y+5)-7y)=0



We calculate terms in parentheses: -(2(y+5)-7y), so:

2(y+5)-7y

We add all the numbers together, and all the variables

-7y+2(y+5)

We multiply parentheses

-7y+2y+10

We add all the numbers together, and all the variables

-5y+10

Back to the equation:

-(-5y+10)



We get rid of parentheses

5y-10-20=0

We add all the numbers together, and all the variables

5y-30=0

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

5y=30

y=30/5

y=6

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