U2+U5+U20= 54 U9= tolong dijawab penting
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U2+U5+U20= 54 U9=
tolong dijawab penting
tolong dijawab penting
1 Jawaban
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1. Jawaban brigidharatna
U2 + U5 + U20 = 54
(a + b) + (a + 4b) + (a + 19b) = 54
3a + 24b = 54
a + 8b = 18
U9 = a + 8b = 18
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