Answer:
x > 3
Explanation:
Get the variable (x) by itself. Divide both sides by -7. Since a negative/ negative = positive, the 3 is positive. When you multiply or divide by a negative, the inequality sign flips. I hope this helped.
-7x < -21
Divide each side by -7, remembering to flip the inequality
-7x/-7 > -21/-7
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