How do you add or subtract #7/(x-5)-(2+x)/(x-5)#?
Here's how I did it:
To add or subtract fractions, we must have the same denominator for all expressions. In this case, both expressions have the same denominator,
This means we can combine the two expressions and just worry about the numerator:
Now we distribute the negative to everything in the parenthesis:
Rewrite that as:
Factor out the negative: