Answer:
CD = 38
Explanation:
BC + CD = BD
8x + 8 + 6x - 28 = 10x + 24
8x + 6x + 8 - 28 = 10x + 24 {Combine like terms}
14x - 20 = 10x + 24 { Add 20 to both sides}
14x = 10x + 24 + 20
14x = 10x + 44 {Subtract 10x form both sides}
14x - 10x = 44
4x = 44 {Divide both sides by 4}
x = 44/4
x = 11
CD = 6x - 28 = 6*11 - 28 = 66 - 28 = 38