Question #N374
If $x + 2y = 6$ and $x - 2y = 4$, what is the value of $x$?
A. 1
B. 2
C. 5
D. 10
Correct Answer is: C
Adding the two equations together, we get $(x+2y) + (x-2y) = 6 + 4$, which simplifies to $2x = 10$. Dividing both sides by 2, we get $x=5$.