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5.5(8-c)+7.5c=50
We move all terms to the left:
5.5(8-c)+7.5c-(50)=0
We add all the numbers together, and all the variables
5.5(-1c+8)+7.5c-50=0
We add all the numbers together, and all the variables
7.5c+5.5(-1c+8)-50=0
We multiply parentheses
7.5c-5.5c+44-50=0
We add all the numbers together, and all the variables
2c-6=0
We move all terms containing c to the left, all other terms to the right
2c=6
c=6/2
c=3
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