Geometry

1.) If AB = 4x + 9, BC = 5x + 2, and AC = 56, then find the value for x, AB, BC

2.) Find x if AC = 17, BD = 2x - 6, AD = x + 16, and BC = 6

3.) If AB = 2(x +1), BC = 3x + 1, and AC = 4(x + 2), then find the value for x, AB, BC and AC