Question 874525
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Hi
{{{b/(g-15) = 7/4}}} 4b -7g = -105
{{{(b-12)/(g-15) = 1/1}}}  b - g = -3
4b-7g = -105
<u> b -g = -3</u>     times -7 add to first
  -3b = -84
    b = 28  and g =31  at the stop to start with
checking
 28/(31-15) = 28/16 = 7/4