himpunan penyelesaian dari pertidaksamaan [tex]3 |2x - 5| - 2 \leqslant 10[/tex]

Kelas 10 Matematika
Bab Nilai Mutlak

3 |2x - 5| - 2 <= 10
3 |2x - 5| <= 10 + 2
|2x - 5| <= 12/3
|2x - 5| <= 4

-4 <= 2x - 5 <= 4
-4 + 5 <= 2x - 5 + 5 <= 4 + 5
1 <= 2x <= 9
1/2 <= 2x/2 <= 9/2
1/2 <= x <= 9/2

HP = { x | 1/2 <= x <= 9/2, x € bilangan real }