SOLUTION: A number become double if it is increased by 8. What is the number?

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Question 650081: A number become double if it is increased by 8. What is the number?
Answer by nerdybill(7384) About Me  (Show Source):
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A number become double if it is increased by 8. What is the number?
.
Let x = the number
then
x+8 = 2x
subtracting x from both sides:
8 = x