Question #N711
If $x + 2y = 6$ and $x - 2y = 4$, what is the value of $x$?
A. 2
B. 3
C. 4
D. 5
Correct Answer is: D
Adding the two equations together, we get $(x+2y) + (x-2y) = 6 + 4$, which simplifies to $2x = 10$. Dividing both sides by 2 gives us $x=5$. Therefore, the value of $x$ is 5.