3=3(y+7)-5y

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



3=3(y+7)-5y

We move all terms to the left:

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



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

3(y+7)-5y

We add all the numbers together, and all the variables

-5y+3(y+7)

We multiply parentheses

-5y+3y+21

We add all the numbers together, and all the variables

-2y+21

Back to the equation:

-(-2y+21)



We get rid of parentheses

2y-21+3=0

We add all the numbers together, and all the variables

2y-18=0

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

2y=18

y=18/2

y=9

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