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Kelas 10Matematika
Bab 4 - Pertidaksamaan
step 1 : menentukan himpunan penyelesaian
|2x + 3| ≤ 1
2x + 3 ≤ 1
2x ≤ 1 - 3
2x ≤ -2
x ≤ -2/2
x ≤ -1
2x + 3 ≥ -1
2x ≥ -1 - 3
2x ≥ -4
x ≥ -4/2
x ≥ -2
hp = {-2 ≤ x ≤ -1}