Question

if f(x) = 3x + 5 and g(x) = 4 - 5x, determine the values of x such that f(g(x)) = g(f(x)) if f(x) = 3x + 5 and g(x) = 4 - 5x, determine the values of x such that f(g(x)) = g(f(x)) @Mathematics

Answer 1

f(g(x))=3*(4-5x)+5
g(f(x))=4-5*(3x+5)
3*(4-5x)+5=4-5*(3x+5)
12-15*x+5=4-15*x-25
17-15*x=-21-15*x
38=0x?!

Answer 2

I'm not getting it either!

Answer 3

the answer is that there is no value of x that accomplish that equality that's it in my opinion

Answer 4

Alright