SOLUTION: the difference between a number and 15 is 7. find the number.

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Question 272370: the difference between a number and 15 is 7. find the number.
Found 2 solutions by Edwin McCravy, Alan3354:
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
the difference between a number and 15 is 7. find the number.
x - 15 = 7

Add +15 to both sides:

x - 15 =   7
  + 15   +15
------------
x      =  21

Edwin

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Edwin is close. I won't spend the time to make a big red font.
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the difference between a number and 15 is 7. find the number.
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n - 15 = 7
n = 22
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15-n = 7
n = 8