SOLUTION: the difference of three times a number and seven equals the difference of nine and a number. set up equation and solve

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Question 237093: the difference of three times a number and seven equals the difference of nine and a number. set up equation and solve
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
3x-7=x-9
2x=-2
x=-1