Question

B=(x:x+5) is not empty set.why ?

Answer 1

Hey

Here is your answer,

B = { x : x+5 = 5 }

solve the equation ,
X+5 = 5
X = 5-5
X = 0

Since it has an element 0 , it is not a null set

Hope it helps you!

Answer 2

Answer:

B=(x:x+5=5}

solve the equation,

X+5 = 5

X = 5-5

X = 0

Since it has an element O, it is not a null set