Matematika

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pakai caranya ya!!!!!!
pakai caranya ya!!!!!!

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  • 95 + (3x-5) + (x-10) = 180
    80 + 4x = 180
    4x = 180-80
    4x = 100
    x = 100/4
    x = 25

    sudut BAC = 3x-5
    = 3(25)-5
    = 75-5
    = 70 derajat

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