Question

2) Decide whether set A and B are equal sets. Give reason for your
A= Even prime numbers
B = {x|7x - 1 = 13}​

Answer 1

A={2}

we have to find the 'x' value in set B

therefore :

7x-1=13

7x= 13+1 ( taking 1 to RHS)

7x=14

x=14/7

x=2

hence x= 2

B= {2}

the elements in set A & set B are same so they are equal...