Question

[trieu phuong anh]

x + 10 = 20

tk mk mk tk lại

Answer 1

[nguyen thi lan huong]

x + 10 = 20

x = 20 - 10

x = 10 

Answer 2

[trieu phuong anh]

x + 10 = 20

x = 20 - 10

x = 10

tk mk mk tk lại