A. 5
Penjelasan dengan langkah-langkah:
K = a + b + c
65 = (x + 20) + (2x + 10) + (3x + 5)
65 = (x + 2x + 3x) + (20 + 10 + 5)
65 = 6x + 35
6x = 65 - 35
6x = 30
x =
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A. 5
Penjelasan dengan langkah-langkah:
K = a + b + c
65 = (x + 20) + (2x + 10) + (3x + 5)
65 = (x + 2x + 3x) + (20 + 10 + 5)
65 = 6x + 35
6x = 65 - 35
6x = 30
x =
x =