9(7y-7)=-63+63y

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Solution for 9(7y-7)=-63+63y equation: 



9(7y-7)=-63+63y

We move all terms to the left:

9(7y-7)-(-63+63y)=0

We add all the numbers together, and all the variables

9(7y-7)-(63y-63)=0

We multiply parentheses

63y-(63y-63)-63=0

We get rid of parentheses

63y-63y+63-63=0

We add all the numbers together, and all the variables

=0

y=0/1

y=0

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