Question 430228
The sum of two numbers is 50. One number is 5 less than 4 times the other number. Find the numbers. 
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Equations:
x + y = 50
x = 4y-5
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Substitute for "x" and solve for "y":
4y-5+y = 50
5y = 55
y = 11
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Solve for "x":
x = 4y-5
x = 4*11-5
x = 39
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Cheers,
Stan H.