nilai mutlak |2x+1|=|x-7|
Matematika
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Pertanyaan
nilai mutlak |2x+1|=|x-7|
1 Jawaban
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1. Jawaban Anonyme
Bab Nilai Mutlak
Matematika SMA Kelas X
|2x + 1| = |x - 7|
2x + 1 = x - 7
2x - x = -7 - 1
x = -8
2x + 1 = - x + 7
2x + x = 7 - 1
3x = 6
x = 2
HP = { -8, 2 }