September 2018 1 74 Report
Penyelesaian pertidaksamaan 7x + 9 ≤ 3x - 11 adalah ..


2) Agar pertidaksamaan 1/4 (3x + 1) > 2/5 ( x + 5 ) benar, maka nilai x haruslah ..
a) x > -25 b) x < -10 c) x < 15 d) x > 20. e) x > 5
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