Question

Hello , I am stuck on this problem and I am looking for someone who can help me find the solution and understand the method , please if anyone could help , please provide with an explanation and the solution . This problem consinsts of 3 statements which they are either true or false , I need an explanation of how they are true or false , not just the answer ! . Please anyone would help with correct solution and explanation , I will give 5 stars !!

thank you

Answer 1

Answer:

TTF

Step-by-step explanation:

(i)if a = b (mod n) ,

a-b = 0 (mod n) ----------- Eqn 1

similarly, b-c = 0 (mod n) ------- Eqn 2

Adding eqn 1 and 2,

a-c = 0 (mod n)

which is a = c (mod n)

(ii) a = b (mod n)

and c = d (mod n)

Adding the equations,

a + b = c + d (mod n)

(iii) a number 7x is always divisible by 7 hence

7x = 0 (mod 7)

Therefore the given statement is false