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4.2=c/4
We move all terms to the left:
4.2-(c/4)=0
We add all the numbers together, and all the variables
-(+c/4)+4.2=0
We get rid of parentheses
-c/4+4.2=0
We multiply all the terms by the denominator
-c+(4.2)*4=0
We add all the numbers together, and all the variables
-1c+16.8=0
We move all terms containing c to the left, all other terms to the right
-c=-16.8
c=-16.8/-1
c=16+0.8/1
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