Question 563734
The sum of three numbers is 150 
o   The largest is 25 times the smallest
o   While the sum of the smallest and three times the largest is 50. 
o   What are my numbers?

I my problem set up like x+y+z=150
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That's true, 
x + y + z = 150
x = smallest, z = largest
--> z = 25x  (why didn't you mention that?)
x + 3z = 50 (or that?)
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Can you do it now?