7(y-9)=2(3y+7)-77

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Solution for 7(y-9)=2(3y+7)-77 equation: 



7(y-9)=2(3y+7)-77

We move all terms to the left:

7(y-9)-(2(3y+7)-77)=0

We multiply parentheses

7y-(2(3y+7)-77)-63=0



We calculate terms in parentheses: -(2(3y+7)-77), so:

2(3y+7)-77

We multiply parentheses

6y+14-77

We add all the numbers together, and all the variables

6y-63

Back to the equation:

-(6y-63)



We get rid of parentheses

7y-6y+63-63=0

We add all the numbers together, and all the variables

y=0

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