Students often get Solve: -9x - 23 ≤ -9 wrong. Let's look at the most common mistakes and how to avoid them when working with inequalities.
x ≥ 14/-9
Step 1: Move -23
Step 2: -9x ≤ 14
Step 3: Divide by -9 (flip!)
This problem uses inequalities. The key idea is to perform the same operation on both sides to keep the equation balanced. Each step brings you closer to isolating the unknown variable.
Inequalities is a fundamental concept in math. Mastering it gives you a strong foundation for more advanced topics.
❌ Mistake 1: Forgetting to apply the same operation to both sides of the equation.
❌ Mistake 2: Making sign errors when moving terms across the equals sign.
❌ Mistake 3: Not simplifying the final answer completely.
x ≥ 14/-9
This problem uses inequalities. The key idea is to perform the same operation on both sides to keep the equation balanced. Each step brings you closer to isolating the unknown variable.
Forgetting to apply the same operation to both sides of the equation.
Want to master inequalities? Try solving similar problems step by step with instant feedback.