Himpunan penyelesaian dari ● 3x – 8 < 8 ●2x – 1 < 0 ●3x – 4 = 7 ●4x + 7 = -12
Jawab:
Penjelasan dengan langkah-langkah:
● 3x – 8 < 8
3x – 8 + 8 < 8 + 8
3x < 16
x < 16/3 , x < 5.1/3
●2x – 1 < 0
2x – 1 + 1 < 0 + 1
2x < 1
x < 1/2
●3x – 4 = 7
3x – 4 + 4 = 7 + 4
3x = 11
x = 11/3
x = 3.2/3
●4x + 7 = -12
4x + 7 – 7 = -12 – 7
4x = -19
x = -19/4
x = -4.3/4