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-2.5=6.5+1.5c
We move all terms to the left:
-2.5-(6.5+1.5c)=0
We add all the numbers together, and all the variables
-(1.5c+6.5)-2.5=0
We get rid of parentheses
-1.5c-6.5-2.5=0
We add all the numbers together, and all the variables
-1.5c-9=0
We move all terms containing c to the left, all other terms to the right
-1.5c=9
c=9/-1.5
c=-6
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