cjruess cjruess 22-06-2018 Mathematics contestada How can x + 4 = 3x + 12 be set up as a system of equations? A.y = x + 1 y = −3x + 12 B.y = x + 2 y = −3x + 12 C.y = x + 4 y = 3x + 12 D.y = 4 y = −3x + 12
