1. The problem asks to find the solution or explanation for "all" which is ambiguous without context. 2. Since "all" is not a specific math problem, I will provide a general explanation about solving equations or finding all solutions. 3. When asked to find "all" solutions, it means to find every value that satisfies the given equation or condition. 4. For example, if solving an equation like $x^2 - 4 = 0$, we find all $x$ such that the equation holds true. 5. The formula used is to set the equation equal to zero and factor or use the quadratic formula: $$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$ 6. Important rules include checking for extraneous solutions and considering the domain of the problem. 7. Without a specific problem, the best approach is to carefully analyze the equation or condition and find all values that satisfy it. 8. Please provide a specific problem or equation to find "all" solutions for a detailed step-by-step explanation.