Answers

2015-06-25T19:04:39+05:30
Solve the  second equation
x+ 5=5
x=0

B= {0 : 5}
0
2015-06-25T19:06:51+05:30
Because if we substitute 0 in the place of x the equation is satisfying .there fore the answer will be
  (0)  it is not a null set.
0