SOLUTION: Twice a number increased by 15 equals 31. What is the numbers?

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Question 477249: Twice a number increased by 15 equals 31. What is the numbers?
Answer by sonya(5) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the number.
2x+15=31
2x=31-15
2x=16
x=16/2
x=8
The number is 8.