Khan Academy Chapter 2

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Variables & expressions
Parts of algebraic expressions: Variables & expressionsSubstitution & evaluating expressions: Variables & expressionsExpression value intuition: Variables & expressionsEvaluating expressions word problems: Variables & expressions

Writing algebraic expressions introduction: Variables & expressionsWriting basic algebraic expressions word problems: Variables & expressionsDistributive property with variables: Variables & expressionsCombining like terms: Variables & expressionsEquivalent expressions
7th GradeExpressions, equations, & inequalitiesCombining like termsThe distributive property & equivalent expressionsInterpreting linear expressionsTwo-step equations introTwo-step equations with decimals and fractionsTwo-step equation word problemsOne-step inequalitiesTwo-step inequalities8th GradeSolving equations with one unknownEquations with variables on both sidesEquations with parenthesesNumber of solutions to equationsEquations word problemsGetting Ready for AlgebraGet ready for equations & inequalitiesAlgebraic equations basicsOne-step addition & subtraction equationsOne-step multiplication & division equationsFinding mistakes in one-step equationsIntro to inequalities with variablesTesting solutions to inequalitiesCombining like termsThe distributive property & equivalent expressionsTwo-step equationsFinding mistakes in two-step equationsOne- and two-step inequalitiesEquations with variables on both sidesEquations with parenthesesAlgebraSolving equations & inequalitiesLinear equations with variables on both sidesLinear equations with parenthesesAnalyzing the number of solutions to linear equations

Parts of algebraic expressions: Variables & expressionsSubstitution & evaluating expressions: Variables & expressionsExpression value intuition: Variables & expressionsEvaluating expressions word problems: Variables & expressionsWriting algebraic expressions introduction: Variables & expressionsWriting basic algebraic expressions word problems: Variables & expressionsDistributive property with variables: Variables & expressionsCombining like terms: Variables & expressionsEquivalent expressions