Respuesta :

Answer:

Step-by-step explanation:

CD = CG + GD

but CG = GD since both sides are the same (G is midpoint)

so,

5x - 1 = 7x - 13

2x = 12

x = 6

CD = 5x - 1 + 7x - 13

CD = 12x - 14

CD = (12 * 6) - 14

CD = 72 - 14

CD = 58