Answer:
x+3
Step-by-step explanation:
If you factor 5 out of the denominator of the first expression, 5x+15 turns into 5(x+3).
Then, since you have x+3 in the numerator and denominator, it will cancel out.
The steps are shown below:

Ive attached an image that shows an example of simplifying an expression using a the same technique.
Answer:
-x+4
Step-by-step explanation:
x-2y
y= x-2
x-2(x-2)
x-2x+4
-x+4
Answer:
the country will lack that particular resource and the country will lack the necessary products from that resource.