First, we will simplify the expression by distributing the -3 and the 2 to each term inside the parentheses.

-3(0,7) - 3(-2,3x) + (4) - 1,8x * 2

Next, we will do the multiplication:

-3(0,7) = -2,1
-3(-2,3x) = 6,9x

Now the expression becomes:

-2,1 - 6,9x + 4 - 1,8x * 2

Now, we will distribute the 2 to the terms in the parentheses:

-2,1 - 6,9x + 4 - 3,6x

Now we can combine like terms:

-2,1 + 4 = 1,9
-6,9x - 3,6x = -10,5x

Therefore, the final simplified expression is:

1,9 - 10,5x