1. You want to practice math, so let's start with a simple algebra problem. 2. Problem: Solve for $x$ in the equation $$2x + 3 = 11$$. 3. Formula: To solve for $x$, isolate $x$ on one side of the equation by performing inverse operations. 4. Step 1: Subtract 3 from both sides: $$2x + 3 - 3 = 11 - 3$$ which simplifies to $$2x = 8$$. 5. Step 2: Divide both sides by 2: $$\frac{2x}{2} = \frac{8}{2}$$ which simplifies to $$x = 4$$. 6. Final answer: $x = 4$. This means that when $x$ is 4, the original equation holds true.