Question

tim x

12+x=28

26.x=52

 

Answer 1

12+x=28

      x=28-12

vậy x=16

 26.x=52

      x=52:26

vây x=2

Answer 2

12+x=28

       x=28-12

       x=16

26.x=52

      x=52:26

      x=2

      Tk mk nha! 

Answer 3

1. x= 28-12

    x=16

2. x= 52:26

      =2