If BC = 5x − 15, CD = 4x, and BD = 8x + 4, what is BD? Simplify your answer and write it as a proper fraction, mixed number, or integer. Could you please type it in a step by step.

If BC 5x 15 CD 4x and BD 8x 4 what is BD Simplify your answer and write it as a proper fraction mixed number or integer Could you please type it in a step by st class=