Answer:
x = 2.4
Step-by-step explanation:
To find the value when f(x) = x, you just have to replace f(x) for x
[tex]f(x) =-\frac{1}{4}x +3 \\x = - \frac{1}{4}x +3 \\x +\frac{1}{4}x=3 \\\frac{5}{4} x= 3 \\ x = 3*\frac{4}{5} \\x = 2.4[/tex]
