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16 January, 01:12

What is the answer of 4x + 5x = 72

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  1. 16 January, 01:34
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    x=8

    Step-by-step explanation:

    4x + 5x = 72

    Combine like terms

    9x = 72

    Divide by 9

    9x/9 = 72/9

    x = 8
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