2q-9=12

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Solution for 2q-9=12 equation: 



2q-9=12

We move all terms to the left:

2q-9-(12)=0

We add all the numbers together, and all the variables

2q-21=0

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

2q=21

q=21/2

q=10+1/2

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