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- Solutions to 2-variable equationsGet 3 of 4 questions to level up!
- Complete solutions to 2-variable equationsGet 3 of 4 questions to level up!

- Systems of equations with substitutionGet 3 of 4 questions to level up!
- Systems of equations with eliminationGet 3 of 4 questions to level up!
- Systems of equations with elimination challengeGet 3 of 4 questions to level up!
- Solving system of equations through cross multiplicationGet 3 of 4 questions to level up!

- Graph from linear standard formGet 3 of 4 questions to level up!
- Plotting horizontal and vertical linesGet 3 of 4 questions to level up!

- Graphing linear relationships word problemsGet 3 of 4 questions to level up!
- Number of solutions to a system of equations graphicallyGet 3 of 4 questions to level up!

- Solving equations reducible to linear formGet 3 of 4 questions to level up!
- Word problems: Writing equations reducible to linear formGet 3 of 4 questions to level up!
- Identifying substitutions: Equations reducible to linear formGet 3 of 4 questions to level up!

- Age word problemsGet 3 of 4 questions to level up!
- Systems of equations word problemsGet 3 of 4 questions to level up!
- Forming equations with two variablesGet 3 of 4 questions to level up!
- Word problems involving pair of linear equations (advanced)Get 3 of 4 questions to level up!

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Level up on all the skills in this unit and collect up to 1700 Mastery points!