Question

Please help me with these

Answer 1

Answer:

27. 8x + 4 = 3(x - 1)

     8x + 4 = 3x - 3

     8x - 4x = - 3 - 4

      4x = -7

       x = -7/4

28. The four rational number:

      -1/2, -1/5, -1/3, -1/4

29.  2x + 3/ x + 1 = 8/3

       3(2x + 3) = 8(x + 1)

        6x + 9 = 8x + 8

        8x - 6x = 9 - 8

          2x = 1

           x = 1/2