1. **State the problem:** Solve the equation $$\frac{x}{x^2 - 4x - 12} - \frac{1}{x+2} = \frac{5}{x+2}$$ for $x$.
2. **Factor the quadratic denominator:**
$$x^2 - 4x - 12 = (x - 6)(x + 2)$$
3. **Rewrite the equation with factored denominator:**
$$\frac{x}{(x - 6)(x + 2)} - \frac{1}{x + 2} = \frac{5}{x + 2}$$
4. **Find the common denominator:** The common denominator is $(x - 6)(x + 2)$.
5. **Rewrite each term with the common denominator:**
$$\frac{x}{(x - 6)(x + 2)} - \frac{1 \cdot (x - 6)}{(x + 2)(x - 6)} = \frac{5 \cdot (x - 6)}{(x + 2)(x - 6)}$$
6. **Combine the left side:**
$$\frac{x - (x - 6)}{(x - 6)(x + 2)} = \frac{5(x - 6)}{(x - 6)(x + 2)}$$
7. **Simplify the numerator on the left:**
$$x - (x - 6) = x - x + 6 = 6$$
So the equation becomes:
$$\frac{6}{(x - 6)(x + 2)} = \frac{5(x - 6)}{(x - 6)(x + 2)}$$
8. **Since denominators are equal and not zero, set numerators equal:**
$$6 = 5(x - 6)$$
9. **Solve for $x$:**
$$6 = 5x - 30$$
$$6 + 30 = 5x$$
$$36 = 5x$$
$$x = \frac{36}{5}$$
10. **Check for restrictions:**
Denominators cannot be zero, so $x \neq 6$ and $x \neq -2$. Our solution $x = \frac{36}{5} = 7.2$ is valid.
**Final answer:**
$$x = \frac{36}{5}$$
Solve Rational Equation 10Caf9
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