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Question 747149: sum of a number and its double is 9.Find the number.
Answer by lenny460(1073)   (Show Source):
You can put this solution on YOUR website! Sum of a number and its double is 9. Find the number ?
Let the number be x.
Its double is 2x.
Therefore:
x + 2x = 9
3x = 9
Divide each side by 3
3x/3 = 9/3
x = 3
Answer:
3
Lennox Obuong
Algebra Tutor
Nairobi, Kenya
Email: obuong3@aol.com
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