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20 October, 09:52

Simplify this expression 2a-1+8b-12b+7a-12

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  1. 20 October, 12:20
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    2a - 1 - 8b - 12b + 7a - 12

    Combine like terms

    2a + 7a = 9a

    -8b - 12b = - 20b

    -1 - 12 = - 13

    9a - 20b - 13
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