Tìm x
x - 2019/ 2019 + x-2019/ 2018 + x - 2019/2017 = 0
Lưu ý : x - 2019 là tử số câu hỏi 6531182 - hoidap247.com

Question

Tìm x
x - 2019/ 2019 +   x-2019/ 2018 + x - 2019/2017 = 0
Lưu ý : x - 2019 là tử số

haylocactinhyeu · Answer

`[x - 2019]/ 2019 + [x-2019]/ 2018 + [x - 2019]/2017 = 0`
`=> (x-2019)( 1/2019 + 1/2018 + 1/2017) = 0`
`=> x - 2019 = 0`
`=> x = 2019`
Vậy `x = 2019`

Swingg · Answer

`{x-2019}/2019+{x-2019}/2018+{x-2019}/2017=0`
`(x-2019)(1/2019+1/2018+1/2017)=0`
Vì `1/2019+1/2018+1/2017ne0`
`=>x-2019=0`
`=>x=2019`
Vậy `x=2019`

Tìm x x - 2019/ 2019 + x-2019/ 2018 + x - 2019/2017 = 0 Lưu ý : x - 2019 là tử số