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# Unit 1: Algebra foundations

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## About this unit

This unit on algebra foundations will introduce us to the exciting world of solving problems with variables! We'll learn about the history of algebra, what variables are, and how to work with them. From substitution to combining like terms, we'll gain the skills we need to take our math skills to the next level. Just let's watch out for that pesky division by zero!

### Learn

### Practice

- Evaluating expressions with multiple variablesGet 3 of 4 questions to level up!
- Evaluating expressions with multiple variables: fractions & decimalsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Combining like terms with negative coefficientsGet 5 of 7 questions to level up!
- Combining like terms with negative coefficients & distributionGet 3 of 4 questions to level up!
- Combining like terms with rational coefficientsGet 3 of 4 questions to level up!

### Practice

- Equivalent expressionsGet 5 of 7 questions to level up!

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

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Level up on all the skills in this unit and collect up to 700 Mastery points!