Question

b)5x-1=3x+11
c)4.(x-2)-5.(2-3x)=4.(2x-6)
d)2.(x-3)-4.(2-4x)=4.(3x-6)​

Answer 1

Resposta:

Explicação passo a passo:

b)5x - 1 = 3x + 11

  5x - 3x = 11 + 1

  2x = 12

  x = 12/2

  x = 6

c) 4.(x - 2) - 5.(2 - 3x) = 4.(2x - 6)

   4x - 8 - 10 - 15x = 8x - 24

   4x - 15x - 8x = - 24 + 10 + 8

    - 11x - 8x = - 14 + 8

     - 19x = - 6 . (-1)

      19x = 6

       x = 6/19

     

d) 2.(x - 3) - 4.(2 - 4x) = 4.(3x - 6)​

    2x - 6 - 8 + 16x = 12x - 24

    2x + 16x - 12x = - 24 +8 + 6

    18x - 12x = - 16 + 6

     6x = - 10

      x = - 10/6 : 2

      x = - 5/3