posted by Joe .
Could someone please help me with those 2 problems...thanks a lot for any of your help
Use an algebraic approach to solve the problem.
Find three consecutive integers whose sum is 57.
Suppose that Maria has 140 coins consisting of pennies, nickels, and dimes. The number of nickels she has is 8 less than twice the number of pennies; the number of dimes she has is 20 less than three times the number of pennies. How many coins of each kind does she have?