Answer:
x = 20
Step-by-step explanation:
we are given the value of f(x), replace it in the first equation
15 = x - 5
solve for x by adding 5 on both sides
15 + 5 = x
20 = x or x = 20
The value of x is 20.
Given function is,
[tex]f(x)=x-5[/tex]
We have to find the value of x when [tex]f(x)=15[/tex]
[tex]x-5=15\\\\x=15+5\\\\x=20[/tex]
The value of x is 20.
Learn more about the function here:
https://brainly.com/question/25638609
