Question

Himpunan penyelesaian dari
1/2 (x-2) > 5+ 4/5x adalah....

Answer 1

10.1/2 (x-2) > 10.5 + 10.4/5x
= 5.1 (x-2) > 50 + 2.4x
= 5 (x-2) > 50 + 8x
= 5x - 10 > 50 + 8x
= 5x - 5x - 10 > 50 + 8x - 5x
= -10 > 50 + 3x
= -10 -50 > 50 - 50 + 3x
= -60 > 3x
= -20 > x / dibaca x lebih kecil dari -20
HP = {-21, -22, -23, ...}