Answer
$(2,-1)$
Work Step by Step
Step 1. Multiply 2 to the first equation and multiply 3 to the second equation:
$\begin{cases}6x+8y=4\\6x+15y=-3 \end{cases} $
Step 2. Taking the difference between the two, we have $7y=-7$; thus $y=-1$
Step 3. Back-substitute $y=-1$ in either equation; we have $3x-4=2$ and thus $x=2$
Step 4. The solution is $(2,-1)$
