Respuesta :

wegnerkolmp2741o

Answer:

180-x = DCE

Step-by-step explanation:

BCE = 180 degrees since it is a straight line

BCE = BCD + DCE  since these are the two angles that make the line

180 = BCD + DCE

We know BCD = x

180 = x + DCE

Subtract x from each side

180-x = DCE

Answer:

180-x = DCE

Step-by-step explanation: