1. **State the problem:** Solve the equation $$3^x = 27 \times \left(\frac{1}{3}\right)^{5x-9}$$ for $x$.
2. **Rewrite the constants as powers of 3:**
- Note that $27 = 3^3$.
- Also, $\frac{1}{3} = 3^{-1}$.
3. **Substitute these into the equation:**
$$3^x = 3^3 \times \left(3^{-1}\right)^{5x-9}$$
4. **Simplify the right side using power of a power rule:**
$$3^x = 3^3 \times 3^{-1 \times (5x - 9)} = 3^3 \times 3^{-5x + 9}$$
5. **Combine the powers on the right side (product of same bases adds exponents):**
$$3^x = 3^{3 + (-5x + 9)} = 3^{12 - 5x}$$
6. **Since the bases are the same and nonzero, set the exponents equal:**
$$x = 12 - 5x$$
7. **Solve for $x$:**
$$x + 5x = 12$$
$$6x = 12$$
8. **Divide both sides by 6:**
$$\cancel{6}x = \frac{12}{\cancel{6}}$$
$$x = 2$$
**Final answer:** $$x = 2$$
Exponential Equation F64491
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