200-x=1000-900
200-x=100
x=200-100
x=100
200 - x = 1000 - 900
200 - x = 100
x = 200 - 100
x = 100
200-x=1000-900
200-x=100
x=200-100
x=100
mk k bn 2 cái rùi k lại đi
sau đó mk sẽ k thêm cho bn 1 cái nữa
200-x=1000-900 200-x=100 x=200-100 x=100 VâÞy=100
200 - x = 1000 - 900
200 - x = 100
x = 200 - 100
x = 100
tk mình nha mình tk lại!
200 - x = 1000 - 900
200 - x = 100
x = 200 - 100
x = 100
200-X=1000-900
200-X=100
X=200-100
X=100
200 - x = 1000 - 900
200 - x = 100
x = 200 - 100
x = 100
k mk nha
200 - x = 1000 -900
200 - x = 100
x = 200 -100
x = 100