Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
So first thing we'll have to plug in what we know...
[tex]-5=5x+40[/tex]
Then we should start by subtracting 40 on both sides...
[tex]-45=5x[/tex]
Then after that we will simple just have to divide 5 on both sides to get the answer of...
[tex]f(x)=-9[/tex]
So it's choice A. -9
