Answer:
Multiplication Property of equality
Step-by-step explanation:
AX BX
---- = ---
CY DY
Multiply each side by CY *DY
AX BX
CY * DY---- = --- CY *DY
CY DY
Canceling
DY *AX = BX DY
Then multiply by 1/ AX on each side
DY = BX * DY * 1/ AX
Then Multiply by 1/ CY on each side
DY BX
---- = ---
CY AX
