Answer: x=-4, y=-3
Explanation: We can use the elimination method to make two of the variables cancel out.
For the second question, we can multiply everything by -3 to get -15x+27=-21, where 15x and -15x will cancel out.
Adding the remaining equations will give us 17y=-51 and solving for y gives us y=-3.
If we plug -3 in for y in the 2nd original equation, we get 5x+27=-4, where solving for x will give us x=-4
