Question

What is the value of the rational expression below when x is equal to 5 15-x/x-10

Answer 1

The value of given rational expression is -2 when x = 5.

Explanation:

We are given the following information in the question:

The value of x is 5.

We have to find the value of rational expression:

`\displaystyle(15-x)/(x-10)`

Putting x = 5 in the above expression we have:

`\displaystyle(15-x)/(x-10) = (15-5)/(5-10) = (10)/(-5) = -2`

Thus, the value of given rational expression is -2 when x = 5.

Answer 2

The value of rational expression at x=5 is -2

Explanation:

Given:
`(15-x)/(x-10)`

We are given rational expression and need to find the value of expression at given value of x=5

So, we will put x=5 into the rational expression

`\Rightarrow (15-x)/(x-10)`

`\Rightarrow (15-5)/(5-10)`

Simplify numerator and denominator

`\Rightarrow (10)/(-5)`

`\Rightarrow -2`

Hence, The value of rational expression at x=5 is -2