Answer:
The answer is 25.
Explanation:
What you have to do here is just replace "x" in the equation with -3. In other words, you plug in -3 to f(x).
f(-3) = 5(2 - - 3).
To negatives makes a positive.
f(-3) = 5(2 + 3).
f(-3) = 5(5).
5 times 5 is 25.
f(-3) = 25.
So your answer is 25.