I 2x-1 I =7 ini gimana ??
Matematika
gindanti
Pertanyaan
I 2x-1 I =7 ini gimana ??
2 Jawaban
-
1. Jawaban alvinindra99
Jawaban :
|2x-1| = 7
2x-1 = 7
x = 7+1/2
x = 4
2x-1 = -7
x = -7+1/2
x = -3 -
2. Jawaban BSunShine
Materi : Nilai Mutlak
Kelas : X SMA
I2x - 1 I = 7
2x - 1 = 7 atau -7
2x - 1 = 7
2x = 7 + 1
2x = 8
x = 8/2
x = 4
2x - 1 = -7
2x = -7 + 1
2x = -6
x = -6/2
x = -3
Hp = { -3 , 4 }