7.AF.1
Apply the properties of operations (e.g., identity, inverse, commutative, associative, distributive properties) to create equivalent linear expressions, including situations that involve factoring out a common number (e.g., given 2x - 10, create an equivalent expression 2(x - 5)). Justify each step in the process. (E)
Example Problems
Solve for x:
Solve for x:
Solve for x:
Khan Academy ResourcesDistributive property with variables (negative numbers)Combining like terms with negative coefficientsCombining like terms with negative coefficients & distributionCombining like terms with rational coefficientsEquivalent expressions: negative numbers & distributionCombining like terms with negative coefficients & distributionCombining like terms with negative coefficientsCombining like terms with rational coefficientsEquivalent expressions: negative numbers & distributionThe distributive property with variables

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