Question

tim x :

x - 25%x = 0.5

Answer 1

x - 25%x = 0,5

x - 1/4x = 1/2

x.(1 - 1/4) = 1/2

x . 3/4 = 1/2

x = 1/2 : 3/4

x = 1/2 . 4/3

x = 2/3

Vậy x = 2/3

Ủng hộ mk nha ^_-