First, replace f(x) with y.
So we have now:
y = 3x + 1
Next, switch the x and y.
We get:
x = 3y + 1
Finally, solve for y.
3y = x - 1
y = x/3 - 1/3
So, we have f(x) = 3x + 1, and the inverse of this function is:
Answer:
X=-3 y=-8
Step-by-step explanation:

Put the second one in first


Answer:
J = 8
Step-by-step explanation:
multiply both sides of the equation by 4/3 = 4/3 × 3/4j = 4/3 × 6
Reduce the numbers with the greatest common factor 4 = 1/3 × 3j = 4/3 × 6
j = 4/3 × 6
j = 4 × 2
Multiply the numbers = j = 4 × 2
j = 8