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simplify 5ab+9a-ab-7a and justify each step as associative , distributive, commutative, or additive property.
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simplify 5ab+9a-ab-7a and justify each step as associative , distributive, commutative, or additive property.

User Wilfred Hughes
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Answer:

5ab-ab+9a-7a

ab(5-1)+a(9-7)

4ab+2a

a(4b+2)

User Heine Frade
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