Question 631389
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Hi,
<u>Jamie is twice as old as her brother's  age</u> {{{highlight(x)}}}, 
four years ago, she was four times as old as her brother.
Question states***  4 yrs ago...
 2x - 4 = 4(x-4)
 2x - 4 = 4x - 16
     12 = 2x
     6 = x, brother's age.  Jamie is 12.  {{{2*6}}}

and...4 yrs ago
  {{{8 = 4*2}}}