SOLUTION: One number is 2 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 456, find the numbers.

Question 939228: One number is 2 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 456, find the numbers.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
y = 2x
z = x + 100
x + y + z = 456
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put the system of linear equations into standard form
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2x - y = 0
x - z = -100
x + y + z = 456
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solution:
x = 89
y = 178
z = 189
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