# Unit 4: Linear equations and linear systems

## Lesson 3: Balanced moves

### Practice

Equations with variables on both sidesGet 3 of 4 questions to level up!

## Lesson 4: More balanced moves

### Practice

Equations with parenthesesGet 3 of 4 questions to level up!

## Lesson 6: Strategic solving

### Learn

No videos or articles available in this lesson

### Practice

Equations with parentheses: decimals & fractionsGet 3 of 4 questions to level up!

## Extra practice: Linear equations

### Practice

Sums of consecutive integersGet 3 of 4 questions to level up!
Equation practice with vertical anglesGet 3 of 4 questions to level up!
Equation practice with angle additionGet 3 of 4 questions to level up!

## Lesson 7: All, some, or no solutions

### Practice

Number of solutions to equations challengeGet 3 of 4 questions to level up!

## Lesson 8: How many solutions?

### Practice

Number of solutions to equationsGet 3 of 4 questions to level up!

## Lesson 9: When are they the same?

### Practice

Age word problemsGet 3 of 4 questions to level up!

## Lesson 10: On or off the line?

### Learn

No videos or articles available in this lesson

### Practice

Solutions of systems of equationsGet 3 of 4 questions to level up!

## Lesson 12: Systems of equations

### Practice

Systems of equations with graphingGet 3 of 4 questions to level up!

## Lesson 16: Solving problems with systems of equations

### Practice

Systems of equations word problemsGet 3 of 4 questions to level up!