25 . 6 + 25 . 4 + 25 . 18 + 25 . 12 

= 25 . (6 + 4 + 18 + 12)

= 25 . 40

= 1000

25 x 6 + 25 x 4 + 25 x 18 + 25 x 12

= 25 x ( 6 + 4 + 18 + 12 )

= 25 x 40

= 1 000

ta có 25.6 + 25.4 + 25.18 + 25.12 = 25.( 6 + 4 +18 + 12 ) = 25.40 =1000

x + 100 = 200 - 300

x + 100 = -100

x = ( -100 ) - 100

x = -200.

x + 100 = 200 - 300

x + 100 = -100

          x = -100 - 100

          x = -200

k cho tớ trước

tớ k lại sau

x + 100 = 200 - 300

x + 100 = -100

x = -100 - 100

x = -200

x + 300 = 400 - 300

x + 300 = 100

x = 100 - 300

x = -200

k mk mk k lại 

x+300=400-300

x+300=100

x=100-300

x=-200

x+300=400-300

x+300=100

x=100-300

x=-200

\(x+300=400-300\)

\(x+300=100\)

              \(x=100-300\)

              \(x=-200\)

x + 100 = 200 - 300

x + 100 = - 100

x          = -100 - 100

x           = 200

 Vậy x = 200

x+100=200-300

x+100=-100

x=-100-100

x=-200

x+100=200-300

x+100=-100

x=-100-100

x=-200

x + 90 + 10 = 100 - 40

x + 100 = 100 - 40

x + 100 = 60

x = 60 - 100

x = -40

x+90+10=100-40

x+100=100-40

x+100=60

x=60-100

x=-40

x+90+10=100-40

x=-40

mik kik bạn nhé, bạn kik lại mik

x+200=500.2+100-200

x + 200 = 1000 + 100 - 200

x + 200 = 1100 - 200

x + 200 = 900

      x = 900 - 200

       x = 600

x+200=400,2

x=400,2-200

x=200,2

x+ 200 = 500.2 + 100-200

x+200 = 1000 + 100 - 200

x+200 = 1100 - 200

x+200 = 900

=> x = 700

vậy x = 700

x + 100 = 200 - 100 - 100

x + 100 = 0

x          = 0 - 100

x          = -100

Vậy x = - 100

x+100=200-100-100

x+100=0

x       =0-100

x       =-100

x+100=200-100-100

x+100=100-100

x+100=0

x=0-100

x=-100

x+200=300-400-500

x+200=-100-500

x+200=-600

x=-600-200

x=-800

mình nè x= -800

x + 200 = 300 -400 -500

x + 200 = -600

x          = -600 - 200

x          = -800

= -200

K mk đi, mk k lại

x + 100 = 300 - 500 + 100

x + 100 = -200 + 100

x + 100 = -100

          x = -100 + 100

          x = 0

x+100=300-500+100

x+100=-100

x=-100-100

x=-200.

Tích mik nha, mik tích bạn rùi!