Question

500 + x = 100 + 500

300 - x = 300 + 200

400 - x = 200 + 400

Answer 1

500 + x = 100 + 500

500 + x = 600

          x = 600 - 500

          x = 1001

300 - x = 300 + 200

300 - x = 500

         x = 300 - 500

         x = -200

400 - x = 200 + 400

400 - x = 600

         x = 400 - 600

         x = -200

k mk nha mk k l

ại ^_^

Answer 2

500 + 100 = 100 + 500

300 + 200 =  300 + 200

400 + 200  = 200 + 400

Answer 3

500+x=100+500

vay x =100

300-x=300+200

vay x= - 200

400-x=200+400

vay x= -200

Answer 4

nhớ k mình nhé

Answer 5

500 + 100 = 100 + 500

300 - -500 = 300 + 200

400 - -200 = 200 + 400

Answer 6

500 + x = 100 + 500

500 + x = 600

         x = 600 - 500

         x = 100

300 - x  = 300 + 200

300 - x  =  500

        x  = 300 - 500 

        x = -200

400 - x = 200 + 400

400 - x = 600

        x = 400 - 600

        x = -200

Answer 7

cute k mình đi mình k cậu rồi

Answer 8

500 + x = 100 + 500

500 + x = 600

          x = 600 - 500

          x = 100

300 - x = 300 + 200

300 - x = 500

         x =  500 - 300

         x = 200

400 - x = 200 + 400

400 - x = 600

         x = 600 - 400

         x = 200

tk mk mk tk lại

Answer 9

1 x = 100

2 x=  - 200

3 x = - 200

Answer 10

1001

-200

-200

Answer 11

x=100

x=200

x=-200