SOLUTION: The Sum of two numbers is 9 . the difference between five times of the first and four times of the seconds is 9 .what are the numbers ?
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Question 698485: The Sum of two numbers is 9 . the difference between five times of the first and four times of the seconds is 9 .what are the numbers ?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The Sum of two numbers is 9 . the difference between five times of the first and four times of the seconds is 9 .what are the numbers ?
--------
Equations:
x + y = 9
5x-4y = 9
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Multiply thru the top equation by 5:
5x + 5y = 45
5x - 4y = 9
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Subtract and solve for "y":
9y = 36
y = 4
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Solve for "x":
x + y = 9
x + 4 = 9
x = 5
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Cheers,
Stan H.
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