 
Timothy W. answered  12/03/17
Tutor
                    
        4.9
        (114)
            High School Algebra 2 Teacher
Let t = the age of each twin and s = the age of the sister
so, s = t + 3 and
t*t*s = (t+t+s)+3287
Substitute the first equation into the second and solve for t.
     
     
             
                     
                    