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-17.78+2.8c+12.5c=-4.47+16.4c
We move all terms to the left:
-17.78+2.8c+12.5c-(-4.47+16.4c)=0
We add all the numbers together, and all the variables
2.8c+12.5c-(16.4c-4.47)-17.78=0
We add all the numbers together, and all the variables
15.3c-(16.4c-4.47)-17.78=0
We get rid of parentheses
15.3c-16.4c+4.47-17.78=0
We add all the numbers together, and all the variables
-1.1c-13.31=0
We move all terms containing c to the left, all other terms to the right
-1.1c=13.31
c=13.31/-1.1
c=-12+0.11/1.1
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