Question

[nguyen thi lan huong]

x + 20 = 50 + 40 

K mk mk k lại

Answer 1

[nguyen thi lan huong]

x + 20 = 50 + 40

x + 20 = 90

x = 90 - 20

x = 70 

Answer 2

[Phương Otaku]

x + 20 = 50 + 40

x + 20 = 90

        x = 90 - 20

        x = 70

k mk nha~~