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-19=-12.6+c
We move all terms to the left:
-19-(-12.6+c)=0
We add all the numbers together, and all the variables
-(c-12.6)-19=0
We get rid of parentheses
-c+12.6-19=0
We add all the numbers together, and all the variables
-1c-6.4=0
We move all terms containing c to the left, all other terms to the right
-c=6.4
c=6.4/-1
c=-6+0.4/1
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