Question

What is the value of the rational expression below when x is equal to 4? x+20/x+4

Answer 1

Answer:

3

Step-by-step explanation:

All we need to do here is plug in the number 4 for the variable x. Wherever there's an x, kidnap it and replace it with a 4!

$\frac{x + 20}{x + 4}$

x = 4

$\frac{4 + 20}{4 + 4}$

Do the addition.

4 + 20 = 24

4 + 4 = 8

$\frac{24}{8}$

We can simplify this! What is 24 divided by 8?

24/8 = 3

The answer is 3!