Question

y+12=21

Answer 1

y+12=21

y=21-12

y=9

tk nha bạn

thank you bạn

Answer 2

y = 21 - 12

y = 9

tk minh nha

Answer 3

                    y + 12=21

                             y=21-12

                             y=9

Answer 4

y+12=21

     y=21-12

     y=9

Answer 5

y + 12 = 21 

y = 21 - 12

y = 9

Answer 6

=9 k nha !^^

Answer 7

y + 12 = 21

y          = 21 - 12

y          = 9 

Vậy y = 9

Answer 8

y + 12 = 21

y         = 21 - 12

y         = 9