Diketahui 4(x + 3) = 2(3x - 2) + 4. Nilai dari x - 1 adalah....
Matematika
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Pertanyaan
Diketahui 4(x + 3) = 2(3x - 2) + 4. Nilai dari x - 1 adalah....
2 Jawaban
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1. Jawaban mariani02021975
4(x + 3) = 2(3x - 2) + 4
4x + 12 = 6x - 4 + 4
4x + 12 = 6x
4x - 6x = -12
-2x = -12
x = -12/-2
x = 6
x - 1 = 6 - 1
= 5 -
2. Jawaban naurahskyzalfa
4x + 12 = 6x + (-4) + 4
4x + 12= 6x + 0
2 = 6x - 4x
12 = 2x
6 = x
x - 1 = 6 - 1 = 5