B. Complete the proof with missing statements and reasons.
WX = RS
Prove: WR =RS
Statements Reasons
1. W. X. R and S are collinear
in the same order 2 WX = RS .
3. XR =XR
4. WX + XR =XR+ RS
5. WX+XR =WR
6. XR +RS =XS
7. WR = XS
