1. The problem is to "Show solution" which is ambiguous, so I will interpret it as solving a simple algebraic equation for demonstration. 2. Let's solve the equation $2x + 3 = 7$. 3. The formula used is to isolate $x$ by performing inverse operations. 4. Subtract 3 from both sides: $$2x + 3 - 3 = 7 - 3$$ which simplifies to $$2x = 4$$ 5. Divide both sides by 2: $$\frac{2x}{2} = \frac{4}{2}$$ which simplifies to $$x = 2$$ 6. Therefore, the solution to the equation $2x + 3 = 7$ is $x = 2$. This method applies to linear equations where the goal is to isolate the variable on one side.