Question

x x 90 = 900

Answer 1

bang 10

tk bn roi do

Answer 2

x  x90 = 900

    x = 900 :90

    x = 10 ai tk mk mk tk lai

Answer 3

10 ban a

Answer 4

x = 10

k rùi đó

Answer 5

x * 90 = 900

x        = 900 : 90

x        = 10