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| Question 1178308:  The number of solutions (x,y) of the equation ,3x+y=100, where x and y are positive integers, is
 Found 2 solutions by  ikleyn, greenestamps:
 Answer by ikleyn(52879)
      (Show Source): 
You can put this solution on YOUR website! . 
 
Use any of the values  x = 1, 2, 3, . . . , 33  and the corresponding value of y = 100 - 33x.
Doing this way, you will get your answer 33 for the number of solutions.
 
 Solved, answered and explained.
 
 
 
Answer by greenestamps(13209)
      (Show Source): 
You can put this solution on YOUR website! 
 Solving the given equation for y gives
 
 y = 100-3x
 
 Since 100 and 3x are both positive integers, y will also be a positive integer, as long as 3x is less than 100.
 
 So as tutor @ikleyn says in her response, x can be any positive integer less than 100/3.
 
 That gives us 33 solutions to the given equation with x and y both positive integers.
 
 
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