ethannovotny ethannovotny 28-11-2022 Mathematics contestada which of the following equation is parallel to y = 1/3x - 1/7 c. 3.5x + 42y = 6 d. -1/3x + 7y = 3.5 a. -3x + 7y = 6 b. 7x + 3 = 21y