Ta có:
`(1+2y)/18 = (1+4y)/24`
`=> 24(1+2y) = 18(1+4y)`
`=> 24 + 48y = 18 + 72y`
`=> 24 - 18 = 72y - 48y`
`=> 6 = 24y`
`=> y= 6/24 = 1/4`
Lại có: `(1+4y)/24 = (1+6y)/(6x)`
`=> (1+ 4 . 1/4)/24 = (1 + 6 . 1/4)/(6x)`
`=> (1+1)/24 = (1 + 3/2)/(6x)`
`=> 1/12 = (5/2)/(6x)`
`=> 6x = 5/2 : 1/12`
`=> 6x = 5/2 . 12`
`=> 6x= 30`
`=> x= 30:6`
`=> x=5`
Vậy `x= 5 ; y= 1/4`
