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Dependent and independent variables exercise: express the graph as an equation | Khan Academy
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Combining like terms introduction | Introduction to algebra | Algebra I | Khan Academy
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How to simplify an expression by combining like terms and the distributive property | Khan Academy - YouTube
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Combining like terms, but more complicated | Introduction to algebra | Algebra I | Khan Academy
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Examples of simplifying expressions involving rational numbers |7th grade | Khan Academy
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How to find equivalent expressions by combining like terms and using the distributive property
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