Question 419294
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Hi
Let x and y represent Ann's and Bill's ages NOW respectively
 x+ 2 = 2(y+2)   OR x = 2y+ 2   (see below: Ann is 18)
 x -3 = 3(y-3)
(2y+2)-3 = 3(y -3)
   2y-1 = 3y -9
     8 = y     Bill's age NOW is 8.

CHECKING our Answer***
  20 = 2*10