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5x/3+4x/7=1/21
We move all terms to the left:
5x/3+4x/7-(1/21)=0
We add all the numbers together, and all the variables
5x/3+4x/7-(+1/21)=0
We get rid of parentheses
5x/3+4x/7-1/21=0
We calculate fractions
There is no solution for this equation
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