jika 3 < 2x + 7 ≤ 5 maka...
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jika 3 < 2x + 7 ≤ 5 maka...
1 Jawaban
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1. Jawaban 18Navillera
3 < 2x + 7 <= 5
2x + 7 > 3
2x > -4
x > -2
2x + 7 <= 5
2x <= -2
x <= -1
Hp = {-2 < x <= -1}