Which expressions could complete this equation so that it has one solution?
4(4x-3)-6x=

choose exactly two answers that are correct.
a. 12x-12-2x
b. 9x-12
c. 4x+2(3x-6)
d. 3x-3(2x-4)

The two answers would be A and C because they both add up to 10x-12

A and C are correct! because
4(4x-3)-6x = 16x-12-6x = 10x-12 

A. 12x-12-2x = 10x-12 So, A has a same equation with 4(4x-3)-6x
B. 9x-12 We can't do any thing with it. So, B is 9x-12 which is not the same equation with 4(4x-3)-6x
C. 4x+2(3x-6) = 4x+6x-12 = 10x-12 This one got the same equation too
D.3x-3(2x-4) = 3x-6x+12 = -9x+12 which is not the same equation with 4(4x-3)-6x