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Determine h-1(x) and hence solve the equation 3x-1/x+5=2

User Shakle
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To determine h^(-1)(x), which represents the inverse function of h(x), you need to first find the inverse of the function h(x). The function h(x) in your equation is:

h(x) = 3x - 1 / (x + 5)

To find the inverse, switch the roles of x and y and solve for y:

x = 3y - 1 / (y + 5)

Now, solve for y:

1. Multiply both sides by (y + 5) to get rid of the fraction:

x(y + 5) = 3y - 1

2. Distribute x on the left side:

xy + 5x = 3y - 1

3. Move the term with y to one side by subtracting xy and adding 1 to both sides:

5x + 1 = 3y - xy

4. Now, isolate y:

3y - xy = 5x + 1

3y = 5x + 1 + xy

y = (5x + 1 + xy) / 3

So, the inverse function h^(-1)(x) is:

h^(-1)(x) = (5x + 1 + xy) / 3

Now, you can use this inverse function to solve the equation:

3x - 1 / (x + 5) = 2

First, replace h(x) with its inverse h^(-1)(x):

h^(-1)(x) = (5x + 1 + xy) / 3

Now, replace h(x) with x:

(5x + 1 + xy) / 3 = 2

Now, solve for x:

5x + 1 + xy = 6

Subtract 1 from both sides:

5x + xy = 5

Factor out x:

x(5 + y) = 5

Now, divide by (5 + y):

x = 5 / (5 + y)

This is the solution for x in terms of y. If you have a specific value of y, you can find the corresponding x value.
User Amiya Behera
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