1. The user asked to explain how a previous problem was solved. 2. Since no specific problem was mentioned, I will provide a general approach to solving algebraic problems. 3. Typically, solving algebra problems involves identifying the equation or expression, applying relevant formulas or rules, simplifying step-by-step, and checking the solution. 4. For example, if solving a quadratic equation $ax^2 + bx + c = 0$, we use the quadratic formula: $$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$ 5. We calculate the discriminant $\Delta = b^2 - 4ac$ to determine the nature of the roots. 6. Then substitute values of $a$, $b$, and $c$ into the formula and simplify to find the roots. 7. Each step involves careful arithmetic and simplification to ensure accuracy. 8. If you provide the specific problem, I can walk through the exact steps again in detail.