< 1. The sum of a number and three 2. Four times a certain number decreased by one 3. One subtracted from four times a number a 4. A certain number decreased by two 5. Four increased by a certain number 6. A certain number decreased by three 7. Three more than a number 8. Twice a number decreased by three 9. A number added to four 10. The sum of four and a number 11. The difference of two and a number 12. The sum of four times a number and three 13. A number increased by three 14. The difference of four times a number and one​