Solving −2x < 6 Sign Flip Rule

This animation walks through solving the inequality −2x < 6 by isolating x, highlighting the key rule that dividing both sides by a negative number reverses the inequality sign. Viewers see the algebraic steps alongside a number line that shades the solution set x > −3, reinforcing why the arrow direction changes. Designed for ASVAB students reviewing algebra fundamentals, it clarifies a common mistake test-takers make when solving inequalities with negative coefficients.

Narrated · 16:9 · Preview before teaching · automatic layout checks do not establish subject accuracy

The prompt that made it

Explain this exercise to an ASVAB student: Solve the inequality: −2x < 6. Color Scheme: #17271F #D6EE59 #F5F6F1 #5E6961 #FAFBF6 #D9DFD3 Use light color for background. Audience: 13-18

Make your own version

Make the next one in this series

• Show why dividing by a negative number flips an inequality sign using a number line proof
• Solve a two-step inequality like 3 − 2x ≥ 9 for ASVAB practice
• Compare solving equations versus inequalities with the same coefficients side by side