18-7q=-9q

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Solution for 18-7q=-9q equation: 



18-7q=-9q

We move all terms to the left:

18-7q-(-9q)=0

We get rid of parentheses

-7q+9q+18=0

We add all the numbers together, and all the variables

2q+18=0

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

2q=-18

q=-18/2

q=-9

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