Question

please look at picture​

Answer 1

Answer:

As follows,

Step-by-step explanation:

1.ST=RN (Given)

2.ST=SI+IT (Given)

 .RN=RU+UN  (Given)

3. SI+IT=RU+UN  (Transitive property, From 1 & 2)

   SI+IT=IT+UN (Given, IT= RU)

4.SI+UN (Cancelling IT on both sides on 3)