7th grade two-step equations and inequalities

Quick answer

This 7th grade (ages 12–13) playlist covers solving two-step equations, then writing, solving and graphing two-step inequalities, including when to flip the inequality sign. It starts with Math Antics' "Solving 2-Step Equations" and continues with Math with Mr. J and Khan Academy. Loop one example with A–B and repeat it at 0.75×.

Play all on repeat

Videos in this playlist

  1. 1Algebra Basics: Solving 2-Step Equations - Math AnticsAlgebra Basics: Solving 2-Step Equations - Math AnticsmathanticsPlay from here Loop
  2. 2An Intro to Solving Two-Step Equations | Math with Mr. JAn Intro to Solving Two-Step Equations | Math with Mr. JMath with Mr. JPlay from here Loop
  3. 3Solving two-step equations | Linear equations | Algebra I | Khan AcademySolving two-step equations | Linear equations | Algebra I | Khan AcademyKhan AcademyPlay from here Loop
  4. 4Example: two-step equations | Linear equations | Algebra I | Khan AcademyExample: two-step equations | Linear equations | Algebra I | Khan AcademyKhan AcademyPlay from here Loop
  5. 5Solving Two-Step Equations with Negatives | Math with Mr. JSolving Two-Step Equations with Negatives | Math with Mr. JMath with Mr. JPlay from here Loop
  6. 6Example: two-step equation with numerator x | Linear equations | Algebra I | Khan AcademyExample: two-step equation with numerator x | Linear equations | Algebra I | Khan AcademyKhan AcademyPlay from here Loop
  7. 7Solving Two-Step Equations with Two Terms in the Numerator | Math with Mr. JSolving Two-Step Equations with Two Terms in the Numerator | Math with Mr. JMath with Mr. JPlay from here Loop
  8. 8How to solve two-step equations with decimals and fractions | 7th grade | Khan academyHow to solve two-step equations with decimals and fractions | 7th grade | Khan academyKhan AcademyPlay from here Loop
  9. 9Mistakes in solving equations | expressions, equations, and inequalities | 7th grade | Khan AcademyMistakes in solving equations | expressions, equations, and inequalities | 7th grade | Khan AcademyKhan AcademyPlay from here Loop
  10. 10Basic linear equation word problem | 7th grade | Khan AcademyBasic linear equation word problem | 7th grade | Khan AcademyKhan AcademyPlay from here Loop
  11. 11Solving Two-Step Equations | Lesson + PracticeSolving Two-Step Equations | Lesson + PracticeMath with Mr. JPlay from here Loop
  12. 12Introduction to Inequalities | Math with Mr. JIntroduction to Inequalities | Math with Mr. JMath with Mr. JPlay from here Loop
  13. 13Algebra Basics: Inequalities In Algebra - Math AnticsAlgebra Basics: Inequalities In Algebra - Math AnticsmathanticsPlay from here Loop
  14. 14Graphing Inequalities on Number Lines | Math with Mr. JGraphing Inequalities on Number Lines | Math with Mr. JMath with Mr. JPlay from here Loop
  15. 15Writing Inequalities from Number Lines | Math with Mr. JWriting Inequalities from Number Lines | Math with Mr. JMath with Mr. JPlay from here Loop
  16. 16Why Do We Flip the Inequality Sign When Multiplying or Dividing by a Negative? | Math with Mr. JWhy Do We Flip the Inequality Sign When Multiplying or Dividing by a Negative? | Math with Mr. JMath with Mr. JPlay from here Loop
  17. 17How to Solve Two-Step Inequalities | Math with Mr. JHow to Solve Two-Step Inequalities | Math with Mr. JMath with Mr. JPlay from here Loop
  18. 18Solving a two-step inequality | Linear inequalities | Algebra I | Khan AcademySolving a two-step inequality | Linear inequalities | Algebra I | Khan AcademyKhan AcademyPlay from here Loop
  19. 19Solving and Graphing Two-Step Inequalities | Math with Mr. JSolving and Graphing Two-Step Inequalities | Math with Mr. JMath with Mr. JPlay from here Loop
  20. 20Solving a Two-Step Inequality (Example Involves Flipping the Inequality Symbol) | Math with Mr. JSolving a Two-Step Inequality (Example Involves Flipping the Inequality Symbol) | Math with Mr. JMath with Mr. JPlay from here Loop
  21. 21Constructing and solving a two-step inequality | Linear inequalities | Algebra I | Khan AcademyConstructing and solving a two-step inequality | Linear inequalities | Algebra I | Khan AcademyKhan AcademyPlay from here Loop
  22. 22Constructing, solving two-step inequality example | Linear inequalities | Algebra I | Khan AcademyConstructing, solving two-step inequality example | Linear inequalities | Algebra I | Khan AcademyKhan AcademyPlay from here Loop
  23. 23Solving Two-Step Inequalities | Lesson + PracticeSolving Two-Step Inequalities | Lesson + PracticeMath with Mr. JPlay from here Loop

What should a student be able to do after this unit?

Solve equations such as 3x + 5 = 20, including ones with negatives, fractions and decimals; write an equation from a word problem; solve two-step inequalities; flip the sign when multiplying or dividing by a negative; and graph the solution on a number line.

How do saved sections help with a long practice video?

Mr. J's "Lesson + Practice" videos hold several problems. Save each problem as an A–B section on keys 1–9, so a student can try it on paper, then jump to that answer. Stop after N loops keeps sessions short.

Frequently asked questions

Why do you flip the inequality sign?

Multiplying or dividing both sides by a negative number reverses the order of the numbers, so the symbol must flip to stay true. Math with Mr. J's "Why Do We Flip the Inequality Sign" explains this with simple examples.

Is this a 7th grade topic everywhere?

Grade levels vary by country and school. In the US, two-step equations and inequalities usually come in 7th grade (ages 12–13), after one-step equations in 6th grade. Some students meet them earlier or later.