Question

List the elements of the set \\(B=t { x|x-2=5 }\\)

Answer 1

Answer:

In Tabular form B = { 7 }

Step-by-step explanation:

We are given that

The set B = { x | x - 2 = 5 }

If we want to write the Tabular form of Set B then we have to find all those numbers which satisfy the equation  x - 2 = 5

Actually we have to find all the solutions of equation  x - 2 = 5

So

        x - 2 = 5

By adding 2 on both sides of equation we get

  x - 2 + 2 = 5 + 2  

        x - 0 = 5 + 2           ∵ 2 and -2 are additive inverses of each other

              x = 7                 ∵ 0 is additive identity

And we know that their is no other solution for the linear equation

Thus

In Tabular form B = { 7 }

Answer 2

Answer:

B = {7}

Step-by-step explanation:

In the question,

We have the set, B = {x | x - 2 = 5}

Now we can see that there, set B contains the equation,

x - 2 = 5

So, in this equation to find all the values lying in the set.

On solving we get,

x - 2 = 5

x = 5 + 2

x = 7

So,

B = {7}

Therefore, the set B contains only 1 element and that is given by,

B = {7}