12q-4q+3q-9q=12

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Solution for 12q-4q+3q-9q=12 equation: 



12q-4q+3q-9q=12

We move all terms to the left:

12q-4q+3q-9q-(12)=0

We add all the numbers together, and all the variables

2q-12=0

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

2q=12

q=12/2

q=6

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