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
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 a number and 4
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.
15.x divided by 3
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Answer:
1. x+3
2. 4x-1
3. 4x-1
4. x-2
5. 4+x
Fair trade :) 5 points