Jessie is three years older than Mike.Twenty years from now,the sum of their ages would be 51.How old is Jessie today?

Question

I need the representation,equation,solution and answer of my quest

Answer 1

Mike is X

 

Jessie is X+3

 

20 years from now:

 

  X+20 +  (x+3)+20   = 51 <---- the sum is 51

 

 2x + 43 = 51

 

2x = 8

 

x=4

 

Mike is 4

Jessie is 7

 

20 years from now they will be 24 and 27 respectively, which totals 51