Question

x + 20 = 200 + 100

Answer 1

x + 20 = 200 + 100

x + 20 = 300

x = 300 - 20

x = 280

Answer 2

x + 20 = 200 + 100

x + 20 = 300

      x =300 - 20

      x = 280

Answer 3

x=280

Answer 4

x+20=200+100

x+20=300

    x  =300-20

    x  =280.

Tk mk nhé!

Answer 5

x + 20 = 200 + 100

x + 20 = 300

x        = 300 - 20

x        = 280

Answer 6

x + 20 = 200 + 100

x + 20 = 300

x        = 300 - 20

x        = 280

Answer 7

280 nha bạn ^^

Answer 8

x+20=200+100

x+20=300

x =300-20

x=280