Question

Which of the following choices is the solution to this system of equations? x = −2y −4
y = x + 7

Answer 1

x = -6 and y = 1. By using substitution, you simply plug y into x = -2y - 4. So, it would look like this x = -2(x + 7) - 4. Then you distribute to find x. After finding x, you plug it into y = x + 7.