=500 

k mình nha bn

:))

200 + 300 - 100 + 100 = 500

200+300-100+100=500

tk mk nha

x+700=900-100

x+700=800

x        = 800-700

x         = 100

x+300=400+500

x+300=900

x       = 900-300 

x       = 600

x+100=900+300

x+100= 1200

x        = 1200 - 100

x       = 1100

x+700=900-100

x+700=800

x       =800-700

x       =100

x+300=400+500

x+300=900

x       =900-300

x       =600

x+100=900+300

x+100=1200

x      =1200-100

x      =1100

x + 700 = 900 - 100

x + 700 = 800

x = 800 - 700

x = 100

x + 300 = 400 + 500

x + 300 = 900

x = 900 - 300

x = 600

x + 100 = 900 + 300

x + 100 = 1200

x = 1200 - 100

x = 1100

a) x= -300 -100

x = -400

b) x= -300 +100

x= -200 

1)x+100=200-500

x+100=-300

x=-300-100

x=-400

2)x-100=200-500

x-100=-300

x=-300+100

x=-200

\(x+100=200-500\)

\(x+100=-300\)

\(x=-300-100\)

\(x=-400\)

\(x-100=200-500\)

\(x-100=-300\)

\(x=-300+100\)

\(x=-200\)

x+_100=500

x=500-100

x=400

k nha bn!!!

x + 100 = 200 + 300

x + 100 = 500

x = 500 - 100

x = 400 

x + 100 = 200 + 300

x + 100 = 500

x = 500 -100

x = 400

ai k mk đủ 3 cái mk k lại

- 1x100=100

- 2x200=400

- 3x300=900

-100

-400

-900

Cho mk xin mấy tk đi các bạn

- 1 x 100 = 100

- 2 x 200 = 400

- 3 x 300 = 900

k nha mn

12300-300=12000

\(12300-300=12000\)

k mk 3 cái nha

12300 - 300 =12000

x+300=600+200

x+300=800

x       =800-300

x       =500

x + 300 = 600 + 200

x + 300 = 800

x = 800 - 300

x = 500 

k nha

x + 300 = 600 + 200

x + 300 = 800

         x = 800 - 300

         x = 500

tk cho mk nhé !!!!!!! Chúc bạn năm mới vui vẻ

Thank you very much

x+100=500

x=500-100

x=400

tk nha

ai tk mk mk tk lai

x=400 nha

tk mk nha bạn xin bạn đấy!

x + 100 = 200 x 5 : 2

x + 100 = 1000 : 2

x + 100 = 500

x = 500 - 100

x = 400

20

40

60

80

100

120

kb minh nha

10+10=20

20+20=40

30+30=60

40+40=80

50+50=100

60+60=120

10 + 10 = 20

20 + 20 = 40

30 + 30 = 60

40 + 40 = 80

50 + 50 = 100

60 + 60 = 120