x+200=500.2+100-200
x + 200 = 1000 + 100 - 200
x + 200 = 1100 - 200
x + 200 = 900
x = 900 - 200
x = 600
x+ 200 = 500.2 + 100-200
x+200 = 1000 + 100 - 200
x+200 = 1100 - 200
x+200 = 900
=> x = 700
vậy x = 700
x + 200 = 500 . 2 + 100 - 200
x + 200 = 1000 + 100 - 200
x + 200 = 1100 - 200
x + 200 = 900
x = 900 - 200
x = 700
x+200=500.2+100-200
x+200=1000+100-200
x+200=1100-200
x+200=900
x=900-200
x=700
x + 200 = 500 . 2 + 100 - 200
x + 200 = 1000 + 100 - 200
x + 200 = 900
x = 900 - 200
x = 700
x + 200 = 500 * 2 + 100 - 200
x + 200 = 1000 + 100 - 200
x + 200 = 1100 - 200
x + 200 = 900
x = 900 - 200
x = 700
k mk nha