1. 4 added to thrice a number x

2. thrice a number x subtracted by 4

3. twice a number a added to thrice a number b

4. the quotient of 3 subtracted from a number x and 7

5. the product of 9 and a number x increased by 1

6. the product of 6 and a number x decreased by 5

7. the product of 5 and a number y is equal to 25

8. twice the sum of a number n and 3 decreased by 5

9. the quotient of a number x and 3 increased by five

10. thrice a number a subtracted by 1