SOLUTION: Please help me solve : PQ = RS, Prove PR = QS

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Question 665167: Please help me solve : PQ = RS, Prove PR = QS
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
-P--------Q-------R---------S-
1. PQ+=+RS.............................Given
2. PQ+%2B+QR+=+QR+%2B+RS...................Addition Postulate
3.
PQ+%2B+QR+=+PR;
QR+%2B+RS+=+QS..........Segment Addition
4. PR+=+QS.............................Substitution)