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3.1q-1.4=1.3q+6.7
We move all terms to the left:
3.1q-1.4-(1.3q+6.7)=0
We get rid of parentheses
3.1q-1.3q-6.7-1.4=0
We add all the numbers together, and all the variables
1.8q-8.1=0
We move all terms containing q to the left, all other terms to the right
1.8q=8.1
q=8.1/1.8
q=4+0.9/1.8
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