Now solve for $x$:

["# How to Solve for $ x $: Your Step-by-Step Guide to Mastering Algebra", "Solving equations for $ x $ is a fundamental skill in algebra, forming the backbone of math learning from basic arithmetic to advanced calculus. Whether you're a high school student, a math enthusiast, or a teacher, understanding how to isolate $ x $ opens the door to solving real-world problems, physics equations, economics models, and more.", "In this comprehensive guide, we break down how to solve for $ x $ using clear examples, proven strategies, and practical tips to simplify the process—whether it’s a simple linear equation or more complex expressions.", "---", "## What Does “Solve for $ x $” Mean?", "“Solve for $ x $” means finding the value(s) of $ x $ that make a given equation true. For example, in:", "$$\n2x + 5 = 15\n$$", "we solve by isolating $ x $ to discover which number satisfies the equation.", "---", "## Step-by-Step Method to Solve for $ x $", "### Step 1: Start with the Original Equation\nBegin with your equation ready and clear. Example:\n$$\n3x - 7 = 2x + 4\n$$", "### Step 2: Move All Terms With $ x $ to One Side\nSubtract $ 2x $ from both sides to gather $ x $-terms:\n$$\n3x - 2x - 7 = 4\n$$\nSimplify:\n$$\nx - 7 = 4\n$$", "### Step 3: Move Constant Terms to the Other Side\nAdd $ 7 $ to both sides to isolate $ x $:\n$$\nx = 4 + 7\n$$\n$$\nx = 11\n$$", "---", "## Key Principles to Remember", "- Use inverse operations: To undo addition, subtract. To undo multiplication, divide.\n- Do the same operation on both sides: This keeps the equation balanced.\n- Keep it simplified: Reduce fractions and combine like terms at each step.", "---", "## Examples: Solving for $ x $ in Various Cases", "### Example 1: Simple Linear Equation\n$$\nx + 9 = 17\n\Rightarrow x = 17 - 9 = 8\n$$", "### Example 2: With Coefficients\n$$\n5x = 35\n\Rightarrow x = 35 \div 5 = 7\n$$", "### Example 3: Equation with Distributive Property\n$$\n2(x + 4) = 18\n\Rightarrow 2x + 8 = 18\n\Rightarrow 2x = 10\n\Rightarrow x = 5\n$$", "### Example 4: Multi-Variable Equation\n$$\n3x + 2y = 12,\quad y = 3\n\Rightarrow 3x + 2(3) = 12\n\Rightarrow 3x + 6 = 12\n\Rightarrow 3x = 6\n\Rightarrow x = 2\n$$", "---", "## Advanced Tips: Solving More Complex Equations", "For equations involving fractions, exponents, or parentheses, extend these principles:\n- Multiply both sides by a denominator to eliminate fractions.\n- Use exponents: apply roots (e.g., square root) if $ x^2 $ appears.\n- Always verify your solution by substituting $ x $ back into the original equation.", "Example:\nSolve $ \sqrt{x} = 5 $\nSquare both sides:\n$$\nx = 25\n$$\nCheck: $ \sqrt{25} = 5 $ ✓", "---", "## Why Learning to Solve for $ x $ Matters", "- Essential in STEM fields: Math underpins science, engineering, computer science, and finance.\n- Boosts logical thinking: Solving for $ x $ trains structured problem-solving.\n- Prepares you for higher math: Algebra is the gateway to calculus, statistics, and beyond.", "---", "## Summary: Key Takeaways", "- Isolate $ x $ using inverse operations and balance.\n- Simplify each step methodically.\n- Check your work by plugging the solution back in.\n- Practice different types of equations to build fluency.", "---", "If you’re ready, grab your notebook or open your equation solver—because solving for $ x $ isn’t just math advice; it’s a powerful life skill. Start with simple equations today and master the confidence to tackle any expression tomorrow!", "---", "### Related Topics:\n- How to solve quadratic equations for $ x $\n- Algebraic expressions and standard form\n- Graphing linear equations and solving for $ x $ graphically", "---", "Keywords: solve for $ x $, algebra, solve equations step-by-step, linear equations, math tips, algebraic manipulation, solving for variables, fundamental algebra", "---", "Visit our math resources hub for more guides:\n👉 https://www.algebrahelpcenter.com\n👉 Algebra lesson collections\n👉 Practice problems with immediate feedback", "Master solving for $ x $ — your math journey starts now!"]