The sum of three numbers is 15. The sum of the first number and three times the second number is 15. The sum of the second number and the third number is 8. What are the three numbers?
The second number is three times the first and third is seven less than the second. ... 7x = 35, x = 5. and the three numbers are 5, 15, and 8, which do sum to 28.
