19 2dSolve ar equation with one unknown 19-2d=-20-17d-6: Ter Algebra not only solves ar equations with one unknown 19-2d=-20-17d-6, but its clear, step-by-step explanation ofHere's the lotto result of 2D 9PM released by Philippine Charity Sweepstakes Office (PCSO). Winning Numbers. 31. 19. Jackpot Prize. P4,000.00.