himpunan penyele7saian |2x-5| ≤ 10

Kelas 7
Matematika
Bab 6 - Himpunan

|2x-5| ≤ 10
-10 ≤ 2x - 5 ≤ 10
-5 ≤ 2x ≤ 15
-5/2 ≤ x ≤ 15/2

Hp = {-5/2 ≤ x ≤ 15/2}

|2x-5| ≤ 10
✐ 2x-5 ≤ 10
2x ≤ 10+5
2x ≤ 15
x ≤ 15/2
✐ -(2x-5) ≤ 10
-2x+5 ≤ 10
-2x ≤ 10-5
-2x ≤ 5
x ≥ - 5/2

HP = x ≤ 15/2 atau x ≥ - 5/2