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0.02(2c-30)=0.4(c-4)
We move all terms to the left:
0.02(2c-30)-(0.4(c-4))=0
We multiply parentheses
0.04c-(0.4(c-4))-0.6=0
We calculate terms in parentheses: -(0.4(c-4)), so:We get rid of parentheses
0.4(c-4)
We multiply parentheses
0.4c-1.6
Back to the equation:
-(0.4c-1.6)
0.04c-0.4c+1.6-0.6=0
We add all the numbers together, and all the variables
-0.36c+1=0
We move all terms containing c to the left, all other terms to the right
-0.36c=-1
c=-1/-0.36
c=2+0.28/0.36
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