SOLUTION: Joe is 4 times as old as Bob. Bob is 5 years older than Phil. All their ages sum to 73. What is the Difference between Joe and Phil's ages?
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Question 823582: Joe is 4 times as old as Bob. Bob is 5 years older than Phil. All their ages sum to 73. What is the Difference between Joe and Phil's ages? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! ---
x = joe
y = bob
z = phil
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x = 4y
y = z + 5
x + y + z = 73
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put the system of linear equations into standard form
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x - 4y = 0
y - z = 5
x + y + z = 73
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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answer:
x= joe = 52
y= bob = 13
z= phil = 8
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