52.) five times a number is 45
53.) a number multiple by negative 3 is 12
54.) a number divided by 4 is equal to 10
55.) the quotient of number and 3 is negative 8
1.) ten less than a number is equal to 12
3.) eight more than a number is 16
5.) the sum of 5 and a number is 6
7.) the different of a number of a number and 4 is 9

52).  5x=45    Divide each side of the equation by 5.

53).  -3x = 12   Divide each side by -3.

54).  x/4 = 10    Multiply each side by  4 .
 
55).  x/3 = -8    Multiply each side by  3 .

1).  x -10 = 12 .     Add  10  to each side.

3).  x + 8 = 16      Subtract  8  from each side.   

5).  5 + x = 6        Subtract  5  from each side.

7).  x - 4 = 9         Add  4  to each side.

Thank you for the 5 points.    The crust and warm water are delicious.

Ais the correct answer