Question 430228
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Hi
The sum of two numbers is 50. x+y = 50 and y = (50-x)
regardless, starting with one or 2, we would using one to complete
Let x and (50-x) represent the two numbers. 
  x = 4(50-x)-5
 5x = 195
  x = 39    the numbers are 39 and 11

39 = 4*11 - 5 = 44-5