tìm x biết x-1/2018+x-3/2019 = x-3/2017
tìm x biết: x+1/2019+x+2/2018+x+3/2017=x-1/2021+x-2/2022+x-3/2023
Tìm X biết:
X+1/2020 + X+2/2019 +X+3/2018 +X+4/2017 =-4
tìm x biết :
x+4/2017 + x+3/2018 = x+2/2019 + x+1/2020
Tìm x biết \(\frac{x-1}{2017}+\frac{x-2}{2018}-\frac{x-3}{2019}=\frac{x-4}{2020}\)
Tìm x biết: |2017-x| + |2018-x| + |2019-x| =2
Tìm x,biết :|2017-x|+|2018-x|+|2019-x|=2
tìm x,y biết x+y/2017=xy/2018=x-y/2019
tìm x biết \(|2017-x|+|2018-x|+|2019-x|=2\)