Question

If f(x) = 8x + 5, what is f(x)-1?

Answer 1

x-5/8

Explanation:

Answer 2

Answer:(x-5)/8

Explanation:

f(x)=8x+5

let f(x)-1=y

y=8x+5

interchanging x and y

x=8y+5

y=(x-5)/8

Therfore f(x)-1=(x-5)/8