Matematika

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tolong di jawab yg benar gan
tolong di jawab yg benar gan

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1 Jawaban

  • 180’ = 2x+15+6x+5x-30
    180’ = 13x - 15
    195’ = 13x
    15 = x

    2x+15 = 2(15) + 15 = 45’
    5x-30 = 5(15) - 30 = 45’
    6x = 6(15) = 90’

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