\(\frac{x}{3}+\frac{x}{4}+\frac{x}{5}=\frac{x}{6}\)
=) \(\frac{20x}{60}+\frac{15x}{60}+\frac{12x}{60}=\frac{10x}{60}\)
=) \(\frac{20x+15x+12x}{60}=\frac{10x}{60}\)
=) \(\frac{47x}{60}=\frac{10x}{60}\)=) \(47x=10x\)
=) 47x - 10x = 0
=) x . ( 47 - 10 ) = 0
=) x = 0 hoặc 47 - 10 = 0 mà \(47-10=37\ne0\)
=) x = 0