Question #N931
If $2x+3y=12$ and $x-y=1$, what is the value of $x$?
A. 2
B. 3
C. 4
D. 5
Correct Answer is: B
We can solve this system of equations using elimination. Multiplying the second equation by 3, we get $3x-3y=3$. Adding this equation to the first equation, we get $5x=15$. Dividing both sides by 5, we find $x=3$.