For this case we must indicate the graph of the following inequality:
[tex]-3x-7 <20[/tex]
We add 7 to both sides of the inequality:
[tex]-3x <20 + 7\\-3x <27[/tex]
We divide between -3 to both of the inequality taking into account that the meaning changes:
[tex]x> \frac {27} {- 3}\\x> -9[/tex]
Answer:
[tex]x> -9[/tex]
See attached image
