Algebra 1

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What property justifies that 3y+9 = 9+3y

  • Algebra 1 -

    3y + 9 = 9 + 3y
    Commutative Property

    For addition, the rule is
    a + b = b + a
    in numbers, this means 2 + 3 = 3 + 2

  • Algebra 1 -

    What property justifies:

    6a+(2a+8b)

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