How can one half x − 5 = one third x + 6 be set up as a system of equations? (6 points) 2y + x = −10 3y + x = 18 2y + 2x = −10 3y + 3x = 18 2y − x = −10 3y − x = 18 2y − 2x = −10 3y − 3x = 18