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-5(1-9c)=30
We move all terms to the left:
-5(1-9c)-(30)=0
We add all the numbers together, and all the variables
-5(-9c+1)-30=0
We multiply parentheses
45c-5-30=0
We add all the numbers together, and all the variables
45c-35=0
We move all terms containing c to the left, all other terms to the right
45c=35
c=35/45
c=7/9
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