Solve for .
Jimmy had in lunch money for school. Everyday he spends for food and drinks. What is the expression that shows how much money will he have after each day, where is the days, and is the total amount of money left?
.
in lunch money for school. Everyday he spends 
for food and drinks. What is the expression that shows how much money will he have after each day, where 
is the days, and 
is the total amount of money left?