Tolong saya tolong!!!!!

Jawaban:

|3x+1| ≤ 8

-8 ≤ 3x+1 ≤ 8

-8-1 ≤ 3x+1-1 ≤ 8-1

-9 ≤ 3x ≤ 7

-9/3 ≤ 3x/3 ≤ 7/3

-3 ≤ x ≤ 7/3

Opsi : d