you had $26 in your pocket. You purchased x pens at $3.50 each. You now have $8.50 in your pocket. write and solve an equation to find the number of pens purchased.
3.50 26.00 × 5= - 8.50= <---- when you subtract 17.50 17.50. the total and how much is left over you get $17.50 $17.50 equals how much was spent when buying the pens