Let's first simplify the left side of the equation:

-5x - 5 + 5(x - 5)
-5x - 5 + 5x - 25
(5x - 5x) + (-5 - 25)
0 + (-30)
-30

Now let's simplify the right side of the equation:

-( -5 - x ) - 4
-(-5 - x) - 4
-(-5) - (-x) - 4
5 + x - 4
x + 1

So the simplified equation is:

-30 = x + 1

Now subtract 1 from both sides to solve for x:

x = -31

Therefore, the solution to the equation is x = -31.