Question

Alguien sabe como se hace

Answer 1

Respuesta:

a) 1/2 x ( 4/3x - 4) -4 = 0

  1/2 x (4/3x - 4/1) -4 = 0                

1/2 x 4/3x - 4/2 - 4 = 0

4/6x - 2 - 4 = 0

4/6x - 6 = 0

4/6x = 6

4x = 1

x = 1/4

b) x + 2/3 = 1/2x

  2/3 = 1/2x - x

   2/3 = -1/2 x

   4/3 = - x

    x = - 4/3

c) 2-4 (2/7x + 1/7) = 3/2 - 2

 2 - 8/7x + 4/7 = 3/2 - x

 2 + 4/7 = 3/2 - (1/1 + 8/7) x      

 2 + 4/7 - 3/2 = 1/7 x

 2 - 13/14 = 1/7x

 (28 - 13)/14=  1/7 x

  15/14 = 1/7 x

   15/7 = x