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4 June, 13:47

What is the justification for each step in the solution 4 (-6x-3) + 24 = - 72x + 132

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  1. 4 June, 14:16
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    Given 4 (-6x-3) + 24 = - 72x + 132 Distributived Property - 24x - 12 + 24 = - 72x + 132

    you multiply 4 to - 6x and - 3

    Combine Like terms - 96x + 12 = 132

    you combined the one that has the same variable and no variable number like

    (-72x) + (-24x) = - 96x

    (-12) + 24 = 12

    Subtraction Property of Equality - 96x = 120

    subtract 12 on both sides, like this - 96 + 12-12 = 132-12 then you've got - 96x = 120

    Division Property of Equality x = - 1.25

    you divide - 96, like this - 96x/-96 = 120/-96, so you will got the x = - 1.25
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