Question

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

Answer 1

`x\geq -4`

Explanation:

`3x-9\geq-21`

add 9 to both sides

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

`3x\geq -12`

divide both sides by 3

`(3)/(3)x \geq (-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 >>>>