SOLUTION: sum of a number and its double is 9.Find the number

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Question 746737: sum of a number and its double is 9.Find the number
Found 2 solutions by Cromlix, lenny460:
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
x + 2x = 9
3x = 9
x = 3
Your answer is 3

Answer by lenny460(1073) About Me  (Show Source):
You can put this solution on YOUR website!
Sum of a number and its double is 9. Find the number ?

3 + 6 = 9
The number is 3.
It's double is 3 * 2 = 6
So the sum of a number and its double is 9.


The number is: 3

Answer:
3





Lennox Obuong
Algebra Tutor
Nairobi, Kenya
Email: obuong3@aol.com