1.     Twelve less than three times a

Number. 

 2.  19 less than twice a number 

 3.     Twice the sum of a certain

     number  and 68.

 4.     The sum of 10 and the product of

     7 and a number.

 5.  Eleven times a number, less 10.

 6.  A number minus 29.

 7.  93 less than a number.

 8.  Nine times a number.

 9.  One-fourth of a number.

 10.  7 more than 4 times a number.

 11.  The product of 10 and a number.

 12.  Two times a number added to 4.

 13.  The sum of 71 and a number.

 14.    One half of the sum of a number

And 5.

 15.  A number increased by 11. 

 16.    5 less than the product of 6 and

       a number. 

 17.    The sum of a number and

        eight times the same number

 18.    The difference of 40 and a number, split into 5 equal parts.

 19. The product of 1 and a number.

20.  A number minus 95.