x + 400 = 900 + 100
x + 400 = 1000
x = 1000 - 400
x = 600
k cho tui với
x + 400 = 900 + 100
x + 400 = 1000
x = 1000 - 400
x = 600
tk mk nha
x + 400 = 900 + 100
x + 400 = 1000
x = 1000 - 400
x = 600
Bn k mk nha !
x+400=900+100
x+400=1000
x=1000-400
x=600
x + 400 = 900 + 100
x+ 400 = 1000
x = 1000 - 400
x = 600
x+400=900+100
x+400=1000
x=1000-400
x=600
Chúc bn hok giỏi nhé!
