Answer
-50
Work Step by Step
Plugging in the given value of $x$, we find:
$$f(-9)=6x-(x+5)=5x-5=5(-9)-5=-50$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.