Respuesta :

let the number be x.   If it is doubled = 2x.

8 less than a number doubled :           2x - 8

20 more than the number:      x + 20

2x - 8 = x + 20

2x - x = 20 + 8

x = 28 
  
The number is 28.  A.
Let us assume the unknown number to be = x
Now let us get down to forming the equation
2x - 8 = x + 20
2x - x = 20 + 8
x = 28
The unknown number in the question is 28. I hope that this is the answer you were looking for and it has come to your help. The correct option is option "A".
Q&A Education