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8.500/4.200=x/5
We move all terms to the left:
8.500/4.200-(x/5)=0
We add all the numbers together, and all the variables
-(+x/5)+8.500/4.200=0
We get rid of parentheses
-x/5+8.500/4.200=0
We calculate fractions
There is no solution for this equation
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