x+100=200
x=200-100
x=100
x-100=200-300
x-100=-100
x=0
k mk nha
x + 100 = 200
x = 200 - 100
x = 100
x - 100 = 200 - 300
x - 100 = -100
x = -100 + 100
x = 0
x=200-100
x=100
x-100=200-300
x-100=-100
x=-100+100
x=0
x+100=200
x=200-100
x=100
x-100=200-300
x-100=200-300
x-100=-100
x=-100+100
x=0
x + 100 = 200
x = 200 - 100
x = 100
x - 100 = 200 - 300
x - 100 = -100
x = - 100 + 100
x = 0
K mk nha
Mk k lại
x+100=200
x=200-100
x=100
x-100=200-300
x-100=-100
x=-100+100
x=0
x + 100 = 200
x = 200 - 100
x = 100
x - 100 = 200 - 300
x - 100 = - 100
x = -100 + 100
x = 0