SOLUTION: Hi can you explain the formula for : 7 - X = 8 Thanks

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Question 129437: Hi can you explain the formula for :
7 - X = 8
Thanks
Answer by stanbon(48575) About Me  (Show Source):
You can put this solution on YOUR website!
7 - X = 8
Add X to both sides to get:
7 = X + 8
Subtract 8 from both sides to solve for X:
X = -1
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Cheers,
Stan H.