To solve this expression, we need to find a common denominator for all the fractions. The least common denominator (LCD) for 7, 19, and 2006 is 133,433.

Now, let's rewrite each fraction with the LCD:

-5/7 = -5 * 19061/133,433
-4/19 = -4 * 7017/133,433
-2/7 = -2 * 19061/133,433
-15/19 = -15 * 7017/133,433
-1999/2006 = -1999/2006

Now, we can combine the fractions:

(-5 * 19061 - 4 * 7017 - 2 * 19061 - 15 * 7017 - 1999) / 133,433

Simplifying the numerator:

(-95,305 - 28,068 - 38,122 - 105,255 - 1999) / 133,433

Combining like terms:

-367,749 / 133,433

Simplifying the fraction:

-2.754