SOLUTION: How to write twice a number is added to the number and the answer is 90. Find the number.

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Question 840804: How to write twice a number is added to the number and the answer is 90. Find the number.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
write twice a number is added to the number and the answer is 90.
2n + n = 90
I'll let you Find the number.