Question

8x = 7,8.x + 25

giup mk giai bai nay nhanh

Answer 1

8x = 7,8x + 25

8x - 7,8x = 25

(8 - 7,8)x = 25

0,2x = 25

     x = 25 : 0,2

     x = 125

Answer 2

x(8-7,8)=25

   x0.2  = 25

   x       = 25:0.2

   x       = 50

Answer 3

8x = 7,8x + 25

8x - 7,8x = 25

1,5x = 25

x = \(\frac{25}{1,5}\)

x = \(\frac{50}{3}\)

Answer 4

ta có 8x=7,8x+25

hay 7,8x+25=8x

suy ra  8x-7,8x=25

           0,2x=25

suy ra x=25 / 0,2

  x=125

mik nha