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Question 934847: The sum of the three numbers is 82. The second number is double the first. The third number is three less than the second
Answer by algebrahouse.com(1659)   (Show Source):
You can put this solution on YOUR website! x = first number
2x = second number {the second number is double the first}
2x - 3 = third number {the third number is 3 less than the second}
x + 2x + 2x - 3 = 82 {the sum of the three numbers is 82}
5x - 3 = 82 {combined like terms}
5x = 85 {added 3 to each side}
x = 17 {divided each side by 5}
2x = 34 {substituted 17, in for x, into 2x}
2x - 3 = 31 {substituted 17, in for x, into 2x - 3}
first number is 17
second number is 34
third number is 31
For more help from me, visit: www.algebrahouse.com
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