REMEDIAL MATEMATIKA

PERSAMA LINIER

1)-4 x + 5 = 25                                            6) 3 x – 7 = 9 + - x

        - 4 x = 25 – 5                                                   3 x  + 3 = 9 + 7

         -4 x = 20                                                                  4x = 16

              x = 20/-5                                                               x = 16/4

              x = -5                                                                       x = 4

2)7 x + 6 = 14 + 5 x                                       7) – 5 – 9 = 2 x

     7 x – 5 x = 14 – 6                                                       -14 = 2 x

                2 x = 8                                                           -14/2 = x

                    x = 8/2                                                             -7 = x

                    x = 4