Tracy solved the system of equations by making a substitution for x in the second equation. what equation did she get as a result of that substitution? x = –2y – 2 2x + 3y = –6 –2y – 2 = –6 –2y + 1 = –6 –4y – 2 + 3y = –6 –4y – 4 + 3y = –6