linda10447 linda10447

27-10-2019
Mathematics

contestada

what property of equality is. PQ+QR=QR+RS, then PQ=RS

Respuesta :

arbazalam100 arbazalam100

27-10-2019

Answer:

Substitution

Step-by-step explanation:

1. PQ = RS --------Given

2. PQ + QR = QR + RS ---------Addition Postulate

3. PQ + QR = PR;

QR + RS = QS -------Segment Addition

4. PR = QS ------- Substitution

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