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2(1-5x)/3-4(1-3x)/7=12
We move all terms to the left:
2(1-5x)/3-4(1-3x)/7-(12)=0
We add all the numbers together, and all the variables
2(-5x+1)/3-4(-3x+1)/7-12=0
We calculate fractions
There is no solution for this equation
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