Answer:
5x
Step-by-step explanation:
Given expression: 
Take the common number 5 outside in the numerator.

Now, take x common in both the terms in numerator.

Cancel out the common factor in the both numerator and denominator.

Hence, the answer is 5x.
This is the answer: false, because the domain is incorrect
First multiply both sides by 7
Your equation now looks like this:
x-28=0
Now move the constant to the other side causing it to change signs
The negative now becomes a positive
x=28
Now you are left with your answer:
x=28
Hope this helps! :3