Question #N267
If $x + 2y = 10$ and $x - 2y = 6$, what is the value of $x$?
A. 2
B. 4
C. 6
D. 8
Correct Answer is: D
Adding the two equations together, we eliminate the $y$ terms: $(x+2y) + (x-2y) = 10 + 6$. This simplifies to $2x = 16$. Dividing both sides by 2, we get $x = 8$.