7(1-2y)=3(9-3y)

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Solution for 7(1-2y)=3(9-3y) equation: 



7(1-2y)=3(9-3y)

We move all terms to the left:

7(1-2y)-(3(9-3y))=0

We add all the numbers together, and all the variables

7(-2y+1)-(3(-3y+9))=0

We multiply parentheses

-14y-(3(-3y+9))+7=0



We calculate terms in parentheses: -(3(-3y+9)), so:

3(-3y+9)

We multiply parentheses

-9y+27

Back to the equation:

-(-9y+27)



We get rid of parentheses

-14y+9y-27+7=0

We add all the numbers together, and all the variables

-5y-20=0

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

-5y=20

y=20/-5

y=-4

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