SOLUTION: x+y+z=100 12x+13y+15z=1250 How to find x, y, z

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Question 851703: x+y+z=100
12x+13y+15z=1250
How to find x, y, z
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Need three equations to find three unknowns.
Please repost.