SOLUTION: I need some help, Please! I don't know where to begin to solve this. Thank You. The sum of three numbers is 4. The first, minus the second, plus 4 times the third, is -9. The th

Algebra ->  Systems-of-equations -> SOLUTION: I need some help, Please! I don't know where to begin to solve this. Thank You. The sum of three numbers is 4. The first, minus the second, plus 4 times the third, is -9. The th      Log On


   



Question 136566: I need some help, Please! I don't know where to begin to solve this. Thank You.
The sum of three numbers is 4. The first, minus the second, plus 4 times the third, is -9. The third, plus 5 times the first, plus the second, is 24. What are the numbers?

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of three numbers is 4. The first, minus the second, plus 4 times the third, is -9. The third, plus 5 times the first, plus the second, is 24. What are the numbers?
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Let the numbers be x, y, and z.
Three equations:
x + y + z = 4
x - y + 4z = -9
5x + y + z = 24
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Solve by whatever method you know.
I get:
x =5
y =2
z =-3
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Cheers,
Stan H.