3 (x - 3) - (6x - 3) = 4 (3)

x=-6

Step-by-step explanation:

*instead of doing a bunch of subtraction make it + (-#) you'll see what i mean

3 (x - 3) - (6x - 3) = 4 (3)

first do distributive property and figure out the easy stuff:

3x + (-9) + (-6x) + 3=12

then you add 3x and 6x while also adding 9+3

-3x + (-6) = 12

add + 6 to both sides

-3x=18

then divide by - 3

x=-6