Answer:
-4×-2y=2
-4×+8y=-8
6y=6
y=1 then you the value of y and to put in any one equestion
Answer:
80 maybe no ummm udk sorry I might
Step-by-step explanation:
I got you I think
Answer: I think its B
Step-by-step explanation: My friend answered it.
Answer:

Step-by-step explanation:
To find the 5th term in the expansion, we first will need to apply the binomial theorem. I have attached an image of the binomial theorem formula due to not being able to type it.
After applying the binomial theorem and simplifying, you should get:

Our 5th term here is:
which is equal to 
~Hope this helps! Sorry if my answer is confusing at all, it's pretty difficult to explain.~
Lets say a=2 and b=5 you now plug in you numbers to get 3x2x5 we know 3x2=6 so now take 6 and multiply it by 5 so 6x5=30 you can also set this equal to 0 3ab=0 then divide by either a or b ill show you both if you divide by a you are left with 3b=a if you divide by b than you get 3a=b