If you are adding (6a – 3) and (-3a + 6), which of the following choices shows like terms correctly grouped? (1 point) TE O (6a - 3a) + (-3+6) It Ite O (6a + 6) + (-3a – 3) Ite o (6a - 3a) - 3 + 6 0 (6a + 3a) + (-3+6)​