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-71=-9+9c
We move all terms to the left:
-71-(-9+9c)=0
We add all the numbers together, and all the variables
-(9c-9)-71=0
We get rid of parentheses
-9c+9-71=0
We add all the numbers together, and all the variables
-9c-62=0
We move all terms containing c to the left, all other terms to the right
-9c=62
c=62/-9
c=-6+8/9
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