Given f(x) = 5(x + 1) + 16, what is the value of x when f(x) = 1?

x=26

Step-by-step explanation:

substitute x with 1: 5(1)+1+16

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 =

true

explanation: