Question 981897
n = number of nickels
d = number of dimes
q = number of quarters


5n + 10d + 25q = 345
q = d + 3
n = d - 2


Write the equation in terms of d.


5(d - 2) + 10d + 25(d + 3) = 345
5d - 10 + 10d + 25d + 75 = 345
40d + 65 = 345
40d = 280
d = 7


There are 5 nickels, 7 dimes, and 10 quarters.