Question

on adding 9 to the twice of a whole number gives 31 what is the whole number​

Answer 1

Answer:

11

Step-by-step explanation:

let the number be x

therefore, 2x + 9 = 31

or, x = (31 - 9)/2 = 22/2 = 11

Answer 2

Answer:

11

Step-by-step explanation:

let the number be x

then according to question

=>9 +2× x = 31

=>9 + 2x =31

= >2x = 31 -9

=>2x=22

=>x=22/2

=>x=11

therefore the number is 11