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# Unit 7: Equations & inequalities

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## About this unit

Solving equations is a superpower. It means we can model a situation with an equation in any way that makes sense to us, even with an unknown value in the middle. Inequalities are for situations with many true options, like how many pages I can send in my letter using just 1 stamp.

### Learn

### Practice

- Identify equations from visual models (tape diagrams)Get 3 of 4 questions to level up!
- Identify equations from visual models (hanger diagrams)Get 3 of 4 questions to level up!
- Solve equations from visual modelsGet 3 of 4 questions to level up!

### Learn

### Practice

- One-step addition & subtraction equationsGet 5 of 7 questions to level up!
- One-step addition & subtraction equations: fractions & decimalsGet 5 of 7 questions to level up!

### Learn

### Practice

- One-step multiplication & division equationsGet 5 of 7 questions to level up!
- One-step multiplication & division equations: fractions & decimalsGet 5 of 7 questions to level up!

Level up on the above skills and collect up to 640 Mastery points

### Learn

### Practice

- Find the mistake in one-step equationsGet 3 of 4 questions to level up!

### Practice

- Translate one-step equations and solveGet 3 of 4 questions to level up!
- Model with one-step equationsGet 3 of 4 questions to level up!
- Model with one-step equations and solveGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

### Learn

### Practice

- Testing solutions to inequalities (basic)Get 3 of 4 questions to level up!
- Graphing basic inequalitiesGet 3 of 4 questions to level up!
- Inequality from graphGet 3 of 4 questions to level up!
- Plotting inequalitiesGet 3 of 4 questions to level up!
- Inequalities word problemsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Learn

### Practice

- Independent versus dependent variablesGet 3 of 4 questions to level up!
- Tables from equations with 2 variablesGet 3 of 4 questions to level up!
- Match equations to coordinates on a graphGet 3 of 4 questions to level up!

### Learn

### Practice

- Relationships between quantities in equationsGet 3 of 4 questions to level up!
- Analyze relationships between variablesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

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Level up on all the skills in this unit and collect up to 2,200 Mastery points!