SOLUTION: please show me how to solve this problem, step by step. f(x) = 3x + 4 find f(-5)

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Question 423276: please show me how to solve this problem, step by step.
f(x) = 3x + 4 find f(-5)
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
Let's first plug in -5 to look like this:
f(-5) = 3(-5) + 4
Do the math to get:
-15+4
Add to get:
-11
There we go.
Make sense?
RJ
www.math-unlock.com