Question

How do you simplify `(7+w)/(-7-w)`?

Answer 1

See a solution process below:

Explanation:

First, rewrite the denominator as:

`(7 + w)/(-1(7 + w)`

Now, cancel common terms in the numerator and denominator:

`color(red)(cancel(color(black)(7 + w)))/(-1color(red)(cancel(color(black)((7 + w))))) => 1/-1 = -1`

How, because we cannot divide by `0` in the original expression we need to restrict as:

Where `x != -7`