19 2dThe answer to 19-2d=-20-17d-6 is d=-3; Solve for d: 19-2d=-20-17d-6; The solution is d=-3; Study Tools AI Math Solver Popular Problems Worksheets Study Guides Practice Cheat SheetsA defendant must serve an answer: (i) within 21 days after being served with the summons and complaint; or (ii) if it has timely waived service under Rule 4(d)