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2.49=q-2.4
We move all terms to the left:
2.49-(q-2.4)=0
We get rid of parentheses
-q+2.4+2.49=0
We add all the numbers together, and all the variables
-1q+4.89=0
We move all terms containing q to the left, all other terms to the right
-q=-4.89
q=-4.89/-1
q=4+0.89/1
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