2(4-9d)-(2d+3)=-8(4-d)+3(1+2d)
8 - 18D - 2D - 3 = - 32 + 8D + 3 + 6D 5 - 20D = 14D - 29 14D + 20D = 5 + 29 34D = 34 D = 1
8-18d-2d-3=-32+8d+3+6d 5+16d=-29+14d 2d=-34 d=-17