Answer:
See below:
Step-by-step explanation:
So, we start off with the equation: 
If we simplify, we can use the distrubutive property to simplify the equation:
Here is how it goes:

So upon simplification of that, we get here: 
Hm, somethings off, do you see that they are the same thing...
So, that means that there would be infinately many solutions.
You can plugin any number and you would get the same result!
Answer:first one is 2.8, second is 3.9
Step-by-step explanation:
Answer:
The answer is 43u – 33v
Step-by-step explanation:
5u – 8v + 9(2u – 3v) -4(2v – 5u)
5u – 8v + 18u – 27v – 8v + 20u
5u + 18u + 20u – 8v – 27v – 8v
43u – 33v
Thus, The answer is 43u – 33v
<u>-TheUnknownScientist 72</u>
I believe it is 13. Just continue adding 2 to the pattern until you have 13 terms