Answer:
Step-by-step explanation:
6-3x=12-6x
Only one solution of x=2
f^-1(x)=(x-3)/4 is the inverse function f(x)=y=>y=4x+3 because f(x) is another way of writing y
Answer:

Step-by-step explanation:
You are given the function
. To find the inverse function
do such steps:
1. Rewrite the function f(x) as

2. Express x in terms of y:

3. Change x into y and y into x:

Now, the inverse function is

291-186=105 (total earned through wages)
105/5=21
Therefore she worked 21 hours