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Mathematics 9 Online
OpenStudy (anonymous):

Given: x – (5 – 3x + 2) = 15 + 3x Prove: x = 22 Mathematical Statement Justification x – (5 – 3x + 2) = 15 + 3x Given x – (5 + 2– 3x) = 15 + 3x x – (7– 3x) = 15 + 3x x – 7 + 3x = 15 + 3x x + 3x – 7 = 15 + 3x Commutative Property of Addition 4x – 7 = 15 + 3x Combine Like Terms x – 7 = 15 Subtraction Property of Equality x = 22 Addition Property of Equality What are the missing justification steps, in order? Commutative Property of Addition, Combine Like Terms, Distributive Property Associative Property of Addition, Distributive Property, Multiplication Property of Equality Associative Property of Addition, Commutative Property of Addition, Distributive Property Associative Property of Addition, Distributive Property, Addition Property of Equality

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