1. Stating the problem: Solve the equation $$-48 + 36 = -\frac{x}{0.04} - 80x$$. 2. Simplify the left side: $$-48 + 36 = -12$$. 3. Rewrite the equation: $$-12 = -\frac{x}{0.04} - 80x$$. 4. Note that dividing by 0.04 is the same as multiplying by 25, so $$-\frac{x}{0.04} = -25x$$. 5. Substitute this back: $$-12 = -25x - 80x$$. 6. Combine like terms: $$-12 = -105x$$. 7. Solve for $$x$$ by dividing both sides by $$-105$$: $$x = \frac{-12}{-105} = \frac{12}{105}$$. 8. Simplify the fraction: $$\frac{12}{105} = \frac{4}{35}$$. Final answer: $$x = \frac{4}{35}$$.