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20 December, 07:50

X + x+2+x+4+x+6 = - 28 state the property that justifies your first step and why you chose it.

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Answers (2)
  1. 20 December, 09:52
    0
    4x+12=-28

    x+3=-7

    x=-11
  2. 20 December, 11:12
    0
    x + x + 2 + x + 4 + x + 6 = - 28

    There are four x's, so 4x.

    And 2 + 4 + 6 is 12.

    4x + 12 = - 28

    Isolate the variable term.

    4x = - 40

    Isolate the variable.

    x = - 10
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