8q-9=9q

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Solution for 8q-9=9q equation: 



8q-9=9q

We move all terms to the left:

8q-9-(9q)=0

We add all the numbers together, and all the variables

-1q-9=0

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

-q=9

q=9/-1

q=-9

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