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3.8=2.2+q
We move all terms to the left:
3.8-(2.2+q)=0
We add all the numbers together, and all the variables
-(q+2.2)+3.8=0
We get rid of parentheses
-q-2.2+3.8=0
We add all the numbers together, and all the variables
-1q+1.6=0
We move all terms containing q to the left, all other terms to the right
-q=-1.6
q=-1.6/-1
q=1+0.6/1
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