Both Jared and Nicole are correct. You can solve for either variable and use the equivalent expression to create a one-variable equation. Then you can solve. Jared would have created a one-variable equation that can be used to solve for x, whereas Nicole would have created a one-variable equation that can be used to solve for y.
Adding the 2 equations will eliminate x because -4x + 4x = 0 so we get -14y = 28 y = -2 plug this into the second euqtion:- 4x + 14(-2) = -28 4x - 28 = -28 x = 0
