Respuesta :
Answer:
-9 < x
Step-by-step explanation:
-3x - 7 < 20
+ 7 + 7
___________
-3x < 27
___ ___
-3 -3
x > -9 [Whenever you divide or multiply by a negative, reverse the inequality symbol.]
The above answer is written in reverse, which is the exact same result.
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Answer:
[tex]x>-9[/tex]
Step-by-step explanation:
[tex]-3x-7<20[/tex]
Solve the inequality for x
To get rid of -7, add 7 on both sides
[tex]-3x-7<20[/tex]
[tex]-3x<27[/tex]
now we divide both sides by -3. Whenever we divide by any negative number we flip the inequality sign
[tex]x>-9[/tex]
We use number line
x is greater than -9. So we shade the number line to the right of -9
Use open circle at -9 and shade to the right.