SOLUTION: if f(3a-1) = 12a-7 find f(x) I tried subracting the two to find f(a) but I don't get the right answer. I need to see some step by step so that I can do others like it. Thank you.

Question 338722: if f(3a-1) = 12a-7 find f(x) I tried subracting the two to find f(a) but I don't get the right answer. I need to see some step by step so that I can do others like it. Thank you.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Hint: Assume f(x) is linear. So and that . If that's the case, then .
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