3x+5=0
3x=0-5
3x=-5
Divide both sides by 3
-1.6666.......
Hope it helps.
As for mod 9, I don't understand.
Answer:
[tex]x=-\cfrac{5}{3}[/tex]
[tex]x=-1.666[/tex]
Step-by-step explanation:
[tex]3x+5=0[/tex]
[tex]3x+5-5=0-5[/tex]
[tex]3x=-5[/tex]
[tex]\cfrac{3x}{3}=\cfrac{-5}{3}[/tex]
[tex]x=-\cfrac{5}{3}[/tex]
