Question

05) On adding 9 to the twice of a whole number gives 31. The whole number is​

Answer 1

Answer:

11 is the answer.

Step-by-step explanation:

9+2x=31

31-9=2x

22=2x

x=11

Answer 2

Given:

On adding 9 to the twice of a whole number gives 31.

To find:

The whole number.

Solution:

The whole number is 11.

We can find the whole number by the following process:

Let the required whole number be x.

So,

According to the question, we have,

$2x + 9 = 31$

Now,

After subtracting 9 on both sides, we have

$2x = 31 - 9$

$2x = 22$

On dividing both sides by 2, we get,

$x = \frac{22}{2}$

$x = 11$

Hence, the required whole number is 11.