I think the answer is B I got this right but it was for a completed grade so i’m not sure
To solve this problem you must apply the proccedure shown below:
If
, you have that:

Because
and 
Therefore, as you can see, the answer is: 
1.3x-2.39=5.76x+4.74
+2.39 +2.39
_________________
1.3x=5.76x+7.13
-5.76x -5.76x
______________
-4.46x=7.13
/-4.46 /-4.46
__________
x=-1.6
D
I think the equation that can be used it like 1,000x+9=2700 because if you miltipuly it by 9 you get your number