I 7-4X I ≤9 CARA KERJA !!!
Matematika
Royalpopcorn
Pertanyaan
I 7-4X I ≤9
CARA KERJA !!!
CARA KERJA !!!
1 Jawaban
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1. Jawaban agataimleng029
|7-4x|≤9
<=> -9 ≤ 7-4x≤9
<=> -9-7≤-4x≤9-7
<=> -16≤-4x≤2
<=>-16/-4≤x≤2/-4
<=> 4≤x≤-½
<=> -½≤x≤4