How do you simplify $\frac{5 x - 15}{x - 3}$ $(5x-15)/(x-3)$ ?

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Answer 1 · 2016-12-28T18:00:58

The value of this expression is $5$ $5$ . See explanation.

First we have to find the domain of this rational expression:

$x - 3 \neq 0 \Rightarrow x \neq 3$ $x-3 !=0 => x !=3$

The domain is $x in RR-{3}$

The value of this expression is:

$(5x-15)/(x-3)=(5(x-3))/(x-3)=5$

Answer: The value of this expressionm is 5 for all real numbers $x$ different from 3

How do you simplify (5x-15)/(x-3)5x−15x−3(5x-15)/(x-3)?