Question

x + 900 = 900 + 100

Answer 1

x+900=900+100

x+900=1000

x       = 100

vậy x=100.

Answer 2

x=100

Answer 3

x = 100

k mk nha~

Answer 4

x + 900 = 900 + 100

x + 900 = 1000

       x    = 1000 - 900

       x    = 100

tk mk mk tk lại

Answer 5

x + 900 = 900 + 100

x + 900 = 1000

x          = 1000 - 900

x         = 100

Ai k mình mình k lại!

Answer 6

x=100

Answer 7

x=100

Answer 8

x + 900 = 900 + 100

x + 900 = 1000

          x = 1000 - 900

          x = 100

k mik nha ^_^