-2y=7y-9y

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Solution for -2y=7y-9y equation: 



-2y=7y-9y

We move all terms to the left:

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

We add all the numbers together, and all the variables

-2y-(-2y)=0

We get rid of parentheses

-2y+2y=0

We add all the numbers together, and all the variables

=0

y=0/1

y=0

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