Từ: `( x - 1 )/( y + 2 )` `=` `3/5`
`=>` `( x - 1 )/3` `=` `( y + 2 )/5` `=` `( x - 1 + y + 2 )/8` `=` `( 23 - 1 + 2 )/8` `=` `24/8` `=` `3`
`=>` `( x - 1 )/3` `=` `3` `=>` `x` `=` `3 × 3 + 1 = 10`
`=>` `( y + 2 )/5` `=` `3` `=>` `y` `=` `5 × 3 - 2 = 13`
`=>` `x = 10; y = 13`
@ Rin gửi
- Xin hay nhất ạ!