Question 984039
Hi dear,
let Clarence age be "x"
After four years,
clarence age=x-4
father's age=5(x-4)-1
             =5x-20-1
             =5x-19
But the sum 
of their age's is 39.
i.e x+5x-19=39
 6x=39+19
6x=60
divide bothsides by 6
x=10
clarence age is 10yrs
His father's age=5x-1
                 =5(10)-1
               =50-1
             =49yrs
IS THAT OK?
Best regards,
Timnewman..