The answer is:
(-2, -6)
Work/explanation:
We need to subtract the two equations:




Divide each side by -4:

Now plug the solution for y, which is -6, into any equation:
2x + (-6) = -10
2x - 6 = -10
2x = -10 + 6
2x = -4
x = -2
Hence, the answer to the system is (-2, -6).