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Matematika
dreamchaser
Pertanyaan
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1 Jawaban
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1. Jawaban Rachelninta
A. 3x - 1/2x - 3/2> 5 -1/6x
= 18x -3x -9> 30 -x = 15x -9> 30 -x
= 15x + x -9 >30 = 15x + x > 30 + 9
= 16x >30 + 9 = 16x > 39 = x > 39/16
B. 5 (1 -5x ) -10( 3-x ) < 6 (4x -3)
= 5 -25x -30 + 10x < 24x -18
= -25 -15x < 24x -18 = -25 -15x -24x < -18
= -15x -24x < -18 + 25 = -39x < 7
= x > -7/39