Question

if we add 9 to twice of a whole number then the result gives 31 the whole number is

Answer 1

Let the number be x

Twice the whole number = 2x

Nine added to the whole number = 2x + 9

Result = 31

A/Q,

2x + 9 = 31

2x = 31 - 9

2x = 22

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

$\boxed{x \: = \: 11}$

$\underline{ So, \: the \: required \: whole \: number \: is \: 11}$

Answer 2

Let the number be x ,

Now,

According to question ,

twic of number(2x) + 9 = 31

2x + 9 = 31

2x = 31 - 9

2x = 22

x = 22/2

x = 11 Ans.