Mathematics
Mathematics, 12.12.2020 16:10, kseniyayakimov

Which property is not used to simplify the following expression? 2. (x + 5) + 7x = (2x + 10) + 7x
= (10 + 2x) + 7x
= 10 + (2x + 7x)
= 10 + 9x
= 9x + 10
associative property of addition
commutative property of addition
commutative property of multiplication
distributive property

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Which property is not used to simplify the following expression? 2. (x + 5) + 7x = (2x + 10) + 7x

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