The sum of three numbers is 107 . The first number is 8 less than the third . The second number is 3 times the third . What are the numbers ?
2 answers:
First number = x Third number = x - 7 Second number = 2(x - 7) x + 2(x - 7) + x - 7 = 107 x + 2x - 14 + x - 7 = 107 Collect like terms. 4x - 21 = 107 4x = 128 x = 32 First number = 32 Second number = 50 Third number = 25 Total = 107.
Answer:
(x - 8) + 3x + x = 107
x - 8 + 3x + x = 107
5x - 8 = 107
5x = 115
x = 23, SO...
The first number is 23-8, which is 15
The second number is 3 x 23, which is 69
The third number is 23
15 + 69 + 23 = 107 CHECK!
Step-by-step explanation:
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