x + 200 = 500 - 400
x + 200 = 100
x = 100 - 200
x = -100
x + 200 = 500 - 400
x + 200 = 100
x = 100 - 200
x = - 100
x + 200 = 500 -400
x + 200 = 100
x = 100 - 200
x = - 100
x + 200 = 500 - 400
x + 200 = 100
x = 100 - 200
x = - 100
x + 200 = 500 - 400.
x + 200 = 100.
x = 100 - 200.
x = -100.
Kích mình nhé!!!
x+200=500-400
x+200=100
x =100-200
x =-100
x+200=500-400
x+200=100
x=100-200
x=-100
x+200=500-400
x+200=100
x=100-200
x=-100
ai k mk mk k lại
