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Mapel : MatematikaKelas : X SMA
Bab : PLSV
Pembahasan :
4.
(4x - 1)/3 - x = (x + 1)/5
5(4x - 1) - 15x = 3(x + 1)
20x - 5 - 15x = 3x + 3
5x - 5 = 3x + 3
5x - 3x = 3 + 5
2x = 8
x = 4
Jawaban : D
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5.
5,2x + 4,7(22 - x) = 107,4
52x + 47(22 - x) = 1074
52x + 1034 - 47x = 1074
5x = 1074 - 1034
5x = 40
x = 8
Jawaban : D