1. Let's solve a simple algebraic problem: Solve for $x$ in the equation $2x + 3 = 7$. 2. The formula to isolate $x$ is to subtract 3 from both sides and then divide both sides by 2. 3. Subtract 3 from both sides: $$2x + 3 - 3 = 7 - 3$$ which simplifies to $$2x = 4$$ 4. Now divide both sides by 2: $$\frac{2x}{\cancel{2}} = \frac{4}{\cancel{2}}$$ which simplifies to $$x = 2$$ 5. So, the solution is $x = 2$. This means when $x$ is 2, the original equation holds true.