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19 November, 23:35

Why do you first combine like terms and then use Distributive Property to solve 8 (5x+9x+6) = 160?

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  1. 20 November, 02:31
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    You can actually do it either way, you could distribute first and then combine, you would get the same answer. I guess it just depends on what you find easier. Here is how to solve it both ways:

    Combining First:

    8 (5x+9x+6) = 160

    8 (14x+6) = 160

    112x+48=160

    112x=112

    x=1

    NOT Combining First:

    8 (5x+9x+6) = 160

    40x+72x+48=160

    112x+48=160

    112x=112

    x=1

    so, you would get the same answer both ways, it is of personal preference what you do first.
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