x + 300 = 1000
x = 1000 - 300
x = 700 nhé bạn
x+500-200=1000
=> x+300=1000
=>x = 1000-300
=>x = 700
vậy: x=700
ai tk mk, tk lại.
x + 500 - 200 = 1000
x + 500 = 1000 + 200
x + 500 = 1200
x = 1200 - 500
x = 700
X+500=1000+200
X+500=1200
X=1200-500
X=700
KIK MÌNH NHÉ
x + 500 - 200 = 1000
x + 500 = 1000 + 200
x + 500 = 1200
x = 1200 - 500
x = 700
vậy x = 700
x+500-200=1000
x+500=1000+200
x+500=1200
x=1200-500
x=700
Ai k mình thì mik lại, yên tam.