1. The problem is to solve the equation or expression labeled as #1 in the table (please provide the specific problem for exact solution). 2. Since the exact problem is not given, I will explain how to approach typical algebraic problems labeled as #1 in tables, such as solving linear equations. 3. For example, if the problem is to solve $ax + b = 0$, the formula used is: $$x = -\frac{b}{a}$$ 4. Important rules: - Ensure $a \neq 0$ to avoid division by zero. - Isolate the variable on one side. 5. Intermediate steps: - Subtract $b$ from both sides: $ax = -b$ - Divide both sides by $a$: $x = -\frac{b}{a}$ 6. This method applies to any linear equation in one variable. Please provide the exact problem #1 for a detailed solution.