Awoman is now 8 times as old as her son michael. two years ago, she was 15 times as old as michael. form an equation and solve it.

-- Let's call Michael's age 'S'  (for 'son')

-- Right now his mother's age is 8 times his age ... 8s

-- Two years ago ...

                   son was (S - 2) years old

                   mother was  (8s -2) years old.

                   she was 15 times her son's age.

--  So          (8s - 2)  =  15(s - 2)    <=== this is the equation

                    8s - 2   =  15s - 30

                        - 2   =    7s - 30

                        28   =    7s

                          4   =     s        <=== this is the solution to the equation

-- Michael is  4  now.
   His mother is  (8s) = 32

-- Two years ago, Michael was  2 .
    His mother was (8s - 2) = 30

   30  = 15 x 2      yay !

B.-2,3 because it is touch the -3 i think that the answer