Answer:
I think the answer is D.
Step-by-step explanation:
Five plus two times a number means 5 + 2n vice versa.
Answer: 10 - 2√21
Step-by-step explanation: I simplified your question by using an online calculator. :)
Answer
so whats the question?
Step-by-step explanation:
80 would be the answer i guess can you explain more in depth?
We want to use elimination to solve
y = 0 (1)
x + y = 40 (2)
Multiply (1) by -1 to eliminate y.
-y = 0 (3)
Add (2) and (3).
x + y + (-y) = 40 + 0
x = 40
Answer: Multiply by -1.
