SOLUTION: The sum of two numbers is 24. The second number is 3 times the first number. Write a system of equation that represent the information and solve by using the elimination method.

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Question 392640: The sum of two numbers is 24. The second number is 3 times the first number. Write a system of equation that represent the information and solve by using the elimination method.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of two numbers is 24. The second number is 3 times the first number. Write a system of equation that represent the information and solve by using the elimination method.
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Equations:
x + y = 24
y = 3x
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Rewrite:
x+y = 24
3x-y = 0
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Add and solve for "x":
4x = 24
x = 6
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Substitute to solve for "y":
y = 3*6
y = 18
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Cheers,
Stan H.