Answer:
B. 2x
Skills needed: Systems Evaluation, Addition of Equations
Explanation:
1) We have a system of two equations and we are adding them together. We need to solve for the x-value of when they are both added together.
We are adding
with

2)
just means

---> This means it is:

-------> When you are adding a negative, you are subtracting a positive:

is your answer.