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LOGARITHM










                                        Problem:



                                                      Given log (5x + 7) = 2    ,    x = ?
                                                                           3





                                        Solution:


                                                      Write an equivalent exponential form


                                                                                                                 y
                                                      (Remember: log x = y  ---> x = a )
                                                                                    a

                                                                    5x + 7 = 3        2


                                                                    5x + 7 = 9


                                                                    5x = 2


                                                                    x = (2/5)
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