1. The user requests answers with 3 relevant numbers, which means answers should be rounded or expressed with three significant figures. 2. To demonstrate, let's solve a sample problem: Find the value of $x$ if $2x + 3 = 11$. 3. Start by stating the problem: Solve for $x$ in the equation $2x + 3 = 11$. 4. Use the formula for solving linear equations: isolate $x$ by subtracting 3 from both sides. 5. Intermediate step: $$2x + 3 = 11 \Rightarrow 2x + \cancel{3} - \cancel{3} = 11 - 3$$ 6. Simplify: $$2x = 8$$ 7. Divide both sides by 2 to solve for $x$: $$\frac{2x}{\cancel{2}} = \frac{8}{\cancel{2}}$$ 8. Simplify: $$x = 4$$ 9. Express the answer with 3 significant figures: $x = 4.00$ 10. This shows how to provide answers with 3 relevant numbers as requested.