SOLUTION: Is 15 a solution to the equation 8 – x = 7? Please can someone help me?

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Question 8497: Is 15 a solution to the equation 8 – x = 7?
Please can someone help me?
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
No, it is not. You can easily find out whether or not 15 is a solution by substituting 15 into the original equation in place of x.
8+-+x+=+7 Replace x with 15.
8+-+15+=+7
-7+=+7 I don't think so!