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Mathematics 19 Online
OpenStudy (anonymous):

If f(x) = x + 3, find the value of x if f(x) = 9. Answer 3 6 12 9 say a b c or d and I will award you a medal.

OpenStudy (saifoo.khan):

Getting direct answers is marked as cheating.

OpenStudy (jamesj):

So think about it instead. If f(x) = 9 and f(x) = x + 3, then .... what?

OpenStudy (anonymous):

Yeah I know.

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