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1.9-2.2c=3.88
We move all terms to the left:
1.9-2.2c-(3.88)=0
We add all the numbers together, and all the variables
-2.2c-1.98=0
We move all terms containing c to the left, all other terms to the right
-2.2c=1.98
c=1.98/-2.2
c=-1/1.1111111111111
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