Question

Ive been trying at this for an hour help plz?​

Answer 1

Answer:

$x\geq -4$

Step-by-step explanation:

$3x-9\geq-21$

add 9 to both sides

$3x-9+9\geq -21+9$

$3x\geq -12$

divide both sides by 3  

$\frac{3}{3}x \geq \frac{-12}{3}$

$x\geq -4$

Plot a solid dot on -4 on the number line because the inequality sign is great than or equal to and x the great than or equal to -4.

The arrow is then pointed to the left >>>>