You can put this solution on YOUR website! Believe it or not it helps to put your problems in the right category. Many tutors only check selected categories. It also says something about you when you don't have the decency to do a little work for the problem
Since we want the largest number only we will assign n to the largest
n =largest
n-2=middle
n-4=smallest
n+n-2+n-4=2n
solve for n the largest
add up the left side both n's and numbers
get all n's on one side and all numbers on the other. zero is a number.
hint n is less than 10