Ta có : X x 2018 - 2018 = 2018 x 2019 - 4036
=> 2018 x (X - 1) = 2018 x (2019 - 2)
=> 2018 x (X - 1) = 2018 x 2017
Thấy X - 1 = 2017 => x = 2017 + 1 = 2018
Vậy x = ...
X x 2018 - 2018 = 2018 x 2019 - 4036
X x 2018 -2018 = 4070306
X x 2018 = 4070306 + 2018
X x 2018 = 4072324
X = 4072324 : 2018
X = 2018
X x 2018-2018=2018x2019-4036
Xx2028-2018=4070306
Xx2018=4072324
X=2018
k cho mik nha
\(2018x-2018=2018.2019-4036\)
\(2018x=2018.2019-2.2018+2018\)
\(2018x=2018.\left(2019-2+1\right)\)
\(2018x=2018.2018\)
\(\Rightarrow x=2018\) ( cùng chia cả 2 vế cho 2018 )
Vậy \(x=2018\)
X x 2018 - 2018 = 2018 x 2019 - 4036
X x 2018 - 2018 x 1 = 2018 x 2019 - 2018 x 2
( X - 1 ) x 2018 = 2018 x ( 2019 - 2 )
X - 1 = 2018 x 2017 : 2018
X - 1 = ( 2018 : 2018 ) x 2017
X - 1 = 1 x 2017
X - 1 = 2017
X = 2017 + 1
X = 2018
Mình chắc chắn 100% luôn . Học tốt nhé bạn !