25 less than twice a number is equal to the number .what is the number

Question

25 less than a number is equal to the number .what is the number 

 

Answer 1

If N is the number

 

thus 2N is twice the number

 

Then, just write an equation for what it says: 25 less than twice a number is equal to the number  :

 

2N - 25 = N

 

and N = 25