Matematika

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Tolong ya bro... ^*^
^*^*^
Tolong ya bro... ^*^ ^*^*^

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  • x / x + 6 = 12 / 21
    x / x + 6 = 4 / 7
    7x = 4(x + 6)
    7x = 4x + 24
    7x - 4x = 24
    3x = 24
    x = 24 / 3
    x = 8

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