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3.4+2q=7.72
We move all terms to the left:
3.4+2q-(7.72)=0
We add all the numbers together, and all the variables
2q-4.32=0
We move all terms containing q to the left, all other terms to the right
2q=4.32
q=4.32/2
q=2+0.32/2
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