Bantu Jawab Dong….
7. 2x – 4 < 8
= 2x < 8 + 4
= 2x < 12
= x < 12 : 2
= x < 6
HP { 1 , 2 , 3 , 4 , 5 }
8. – 3y < 20 + y
= – 3y – y < 20
= – 4 y < 20
= y < 20 : – 4
= y < – 5
HP { – 5 , – 4 , – 3 , – 2 , – 1 , 0 , 1 , 2 ... }
9. –
10. – 2x + 8 > – 6 + 5x
= – 2x – 5x > – 6 – 8
= – 7x > – 14
= x > – 14 : – 7
= x > 2
semoga bermanfaaat 🙂
maaf kalo salah