x+300=600+200
x+300=800
x=800-300
x=500
x + 300 = 600 + 200
x + 300 = 800
x = 800 - 300
x = 500
x+300=600+200
x+300=800
x=800-300
x=500
t tôi nhé bn
x+300=800
x+800-300
x=500
nha
kb nha
thong
x+300=600+200
x+300=800
x =800-300
x =500.
x + 300 = 600 + 200
x + 300 = 800
x= 800 - 300
x= 500
x + 300 = 600 + 200
x + 300 = 800
x = 800 - 300
x = 500
x +300 = 600 + 200
x + 300= 800
x = 800 - 300
x = 600
x + 300 = 600 + 200
x + 300 = 800
x = 800 - 300
x = 500
K mk nha
Mk k lại
x + 300 = 600 + 200
x + 300 = 800
x = 800 - 300
x = 500