Question

800 - x = 200 + 100

Answer 1

800-x=200+100

800-x=300

      x=800-300

      x=500

Answer 2

800 - x =  200 + 100

800 -x = 300

       x = 800 - 300

        x = 500

Answer 3

x=500 nha Seira Nguyễn

Answer 4

x=500

Answer 5

800 - x = 200 + 100

800 - x = 300

         x = 800 - 300 

         x = 500

Vậy x = 500

Answer 6

800-x=200+100

800-x=300

x=800-300

x=500

x=500

Answer 7

800-x=200+100

800-x=300

x=800-300

x=500