a guy has only dimes and nickels but has 37 coins in the bank and that equals 2.65 dollars how many nicales does he have in his coin bank
+129839 x = number of nickels
37 - x = number of dimes
So
Value of a nickel x number + value of a dime x number = total value
5x + 10(37 - x ) = 265 simplify
5x - 10x + 370 = 265
-5x + 370 = 265 subtract 370 from both sides
-5x = - 105 divide both sides by -5
x = 21 = number of nickels
37 - 21 = number of dimes = 16
