SOLUTION: The sum of three numbers is 123. The second number is 9 less than two times the first number. The third number is 6 more than three times the first number. Find the three numbers.

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Question 171298This question is from textbook Algebra 1
: The sum of three numbers is 123. The second number is 9 less than two times the first number. The third number is 6 more than three times the first number. Find the three numbers. This question is from textbook Algebra 1

Answer by KnightOwlTutor(293) About Me  (Show Source):
You can put this solution on YOUR website!
x=1rst #
2x-9=2nd #
3x+6=3rd #
x+2x-9+3x+6=123
Combine like terms and simplify

6x-3=123
Add 3 to both sides
6x=126
x=21
21=1rst #
33=2nd #
69=3rd #