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8-c/2=7.5
We move all terms to the left:
8-c/2-(7.5)=0
We add all the numbers together, and all the variables
-c/2+0.5=0
We multiply all the terms by the denominator
-c+(0.5)*2=0
We add all the numbers together, and all the variables
-1c+1=0
We move all terms containing c to the left, all other terms to the right
-c=-1
c=-1/-1
c=1
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