Question

[trieu phuong anh]

x + 10 = 30 

tk mk mk tk lại

Answer 1

[le nhu may]

x+10=30

x      =30-10

x      =20

Answer 2

[trieu phuong anh]

x + 10 = 30

x = 30 - 10

x = 20

tk mk mk tk lại