Question

x + 20 = 500 + 520

Answer 1

x+20 = 500+520

x+20=1020

x+20=1000

Answer 2

x + 20 = 500 + 520

x + 20 = 1020

x        = 1020 - 20

x        = 1000

Answer 3

chowi awn gian day chac chan luon

Answer 4

x=500+520-20

x=100 nha bạn

k nha

Answer 5

x + 20 = 500 + 520

x + 20 = 1020

x         =1020 - 20

x         =1000

Answer 6

x + 20 = 500 + 520

x + 20 = 1020

x = 1020 - 20

x = 1000