Answer:
x ≥ 3
Step-by-step explanation:
Solve for x by dividing both sides by -7. When dividing by a negative, you have to flip the inequality.
-7x ≤ -21
-7x/-7 ≤ -21/-7
x ≥ 3
Since it is greater than or equal to, put a closed circle over 3 with the arrow going right -------->
