Question 766732
let leslie higher score is x
jackson score will be 31 more means x+31
as pert given condition total score  is 1205
x+x+31 =1205
2x+31=1205
2x=1205-31
2x=1174
x=1174/2
x=587
leslie will hace 587 score and 
jackson =587+31= 618