Sam took $43 to the movie theater. If he paid for 3 tickets that each cost d dollars he will have 43-3d left how much does he have left if the tickets cost $9.00 each?
If each ticket is $9.75, then you multiply $9.75 by how many tickets he's buying. In this case he's buying 3, so it's 9.75x3. The total for that is $29.25. You subtract $28.25 from $43 and that leaves him with $13.75
