x + 200 = 700
X + 200 = 700 - 200
cậu lấy
x + 200 = 500
x = 500 - 200
x = 300
nhớ k cho mình nha
x+100=200
x-200=600+700
x+100=200
x =200-100
x =100
x-200=600+700
x-200=1300
x =1300+200
x =1500
x+100=200
x=200-100
x=100
x-200=600+700
x-200=1300
x=1300-200
x=1100
x + 100 = 200
x = 200 - 100
x = 100
x - 200 = 600 + 700
x - 200 = 1300
x = 1300 + 200
x = 1500
k mik mik k lại
x + 200 = 700 - 200
x + 200 = 700 - 200
x + 200 = 500
x = 500 - 200
x = 300
x + 200 = 700 - 200
x + 200 = 500
x = 500 - 200
x = 300
ai tk mk mk tk lại ^_^
X + 200 = 500
X = 500 - 200
X = 300
x + 300 = 700 - 200
x + 300 = 700 - 200
x + 300 = 500
x = 500 - 300
x = 200
x + 300 = 700 - 200
x + 300 = 500
x = 500 - 300
x = 200
x+300=700+200
x+300=700+200
x+300=900
x=900-300
x=600
t tôi nhé bn
x+300=700+200
x+300=900
x=900-300
x=600
ai k mk rùi mk k lại
x + 300 = 700 + 200
x + 300 = 900
x = 900 - 300
x = 600
400+x=700-200
400 + x = 700 - 20
400 + x = 500
x = 500 - 400
x = 100
x+200=700-500
x+200=700-500
x+200=200
x=200-200
x=0
k mình nhá
x+100=200+700
x + 100 = 200 + 700
x + 100 = 900
x = 900 - 100
x = 800
x +100 = 200 + 700
x + 100 = 900
x = 900 - 100
x = 800
200 x 700 + 1521 =?