# How do you simplify rational expressions and state restrictions on variables for #(3x + 6)/ (5x + 10)#?

##### 1 Answer

Apr 12, 2018

#### Explanation:

Factorise the expression as far a possible.

Now you can cancel the common factors.

(3cancel(x+2))/(5cancel(x+2) = 3/5#

For the restrictions, you have to make sure that a value of the variable does not make the denominator equal to

If

SO in this case,