8d-d-4d-8=5d A. 1 B. 9 C. -4/3 D. -4
8d - d - 4d - 8 = 5d....simplify (keep in mind, -d is the same as -1d)3d - 8 = 5d.....subtract 3d from both sides-8 = 5d - 3d-8 = 2d ...divide both sides by 2-8/2 = d....reduce-4 = d
