Create a list of six values that were mean, median, and mode are 45, and only two of the values are the same

Based on the problem, the middle value is 45. Since the mode is also 45, two of the six values are already given. For the median, the other two numbers by either side of the middle should be smaller and greater than 45.  As for the mean, the values can be varied as long as the average remains the same.
So the six values are 43 44 45 45 46 47. It could also be 41 43 45 45 47 49. The set of possible answers may vary as long as the specified guidelines were applicable. 

C.) 2

Step-by-step explanation:

4x - 3= -9 + 7x

Subtract 4x from each side

4x-4x - 3= -9 + 7x-4x

-3 = -9 +3x

Add 9 to each side

-3+9 =-9+9 +3x

6 =3x

Divide each side by 3

6/3 = 3x/3

2 =x