Question

y + 400 = 2000 : 2

Answer 1

y+400=1000

y=1000-400

y=600

Answer 2

y+400=2000:2

<=>y+400=1000

<=>y=1000-400

<=>y=600

Answer 3

x + 400 = 2000 : 2

x + 400 = 1000

x          = 1000 - 400

x          = 600

Answer 4

600 hoc tot nhe

Answer 5

y + 400 = 2000 : 2 

y + 400 = 1000

y = 1000 - 400 

y = 600 nha mk nha

Answer 6

y + 400 = 2000 : 2

y + 400 = 1000

       y   = 1000 - 400

       y   =600

k minh nha

Answer 7

Ta có :

y + 400 = 2000: 2

y + 400 = 1000

y          = 1000 - 400

y          = 600