Answer:
x = -4
Step-by-step explanation:
The functional notation () simply means that you replace in the function with whatever values are in the domain. So () = 5 ( + 1) + 16 means that the solution set will contain the answer for every value of .
In the question, () = 1. So you set the function equal to 1, then solve for :
() = 1 = 5 ( + 1) + 16.
Add −16 to both sides: − 15 = 5 ( + 1)
Divide both sides by 5: − 3 = + 1
Add −1 to both sides: − 4 =
