Answer:

Step-by-step explanation:
we have

Let


Exchange variables x for y and y for x

Isolate the variable y



Let

-------> inverse function
The mean is 10 because you will add all the numbers and then divide the answer by 4
Answer:
x = -4
Step-by-step explanation:
1/2x - 20 - x = 6x -3 -2x +1
-1/2x -20 = 4x -2
-1/2x -4x = -2 +20
-9/2x = 18
9/2x = -18
9x = -36
x = -4
Give brainliest please!
hope this helps :)