Write as a system fx=5x=f-1x
Simplify the expression
fx=5x
f-1x=5x
Solve the equation
fx=5x
f-6x=0
Substitute the value of f into the equation
fx=5x
f=6x
Solve the equation
6x*x=15
Substitute the values
x=0
x=5/6
Solve the equation
f=6x0
f=6x5/6
The possible solutions are
f=0
f=5
