-7q+9=-8q

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Solution for -7q+9=-8q equation: 



-7q+9=-8q

We move all terms to the left:

-7q+9-(-8q)=0

We get rid of parentheses

-7q+8q+9=0

We add all the numbers together, and all the variables

q+9=0

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

q=-9

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