Hi there!
Looks like a lot of work is going on here.
Let's start by solving this equation for the x.

Step 1) Add -20y to both sides.

Step 2) Divide both sides by 5.


Final Answer:

Now, let's solve for y.
Step 1) Add -5x to both sides.

Step 2) Divide both sides by 20.


Final Answer:

Hope this helps! :D
Hint - When you have two variables in an equation, and you want to solve for one, the other will end up in your answer. :)
Answer:
B(-2,5)
Step-by-step explanation:

Hope that this is helpful.
Have a nice day.
You will want to check B, E, and F. Hope this helps!
Answer:
139968
Step-by-step explanation:
Multiply the all of the numbers together and you have your answer (:
Answer:
25
Step-by-step explanation:
Any numbers to the 2nd powered are always squared. Whenever you are given an exponent, the base is the number that you multiply, and the power is one more than how many times you multiply the base number together. In this case, you multiply five by itself once to get 25 as your answer.