Question 21830
Let number of nickels be "x"
Then number of dimes is "x+3"
And number of quarters is "x-2"
Value of nickels is 5x cents
Value of dimes is 10(x+3)= 10x+30 cents
Value of quarters is 25(x-2)=25x-50 cents
EQUATION:
 Value of nickels + Value of dimes + Value of quarters is 540 cents
        5x +10x+30 +25x-50 = 540
                   40x = 560
                     x = 14 (number of nickels)
                 x+3 = 17 (number of dimes)
                 x-2 = 12 (number of quarters)

Cheers,
Stan H.