1. The user requests to solve a problem using only formulas, without options. 2. Since no specific problem is provided, I'll explain the general approach to solving algebraic equations using formulas. 3. For example, to solve a quadratic equation $ax^2 + bx + c = 0$, use the quadratic formula: $$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$ 4. This formula directly provides the solutions by substituting the values of $a$, $b$, and $c$ from the equation. 5. Similarly, for linear equations like $ax + b = 0$, solve for $x$ using: $$x = -\frac{b}{a}$$ 6. These formulas allow solving equations analytically without relying on guesswork or options. 7. If you provide a specific equation or problem, I can demonstrate the formula-based solution step-by-step.