7y-9=-9-2.5y

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Solution for 7y-9=-9-2.5y equation: 



7y-9=-9-2.5y

We move all terms to the left:

7y-9-(-9-2.5y)=0

We add all the numbers together, and all the variables

7y-(-2.5y-9)-9=0

We get rid of parentheses

7y+2.5y+9-9=0

We add all the numbers together, and all the variables

9.5y=0

y=0/9.5

y=0

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