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Given: -7x < -21.

Choose the solution set.

User Lugarini
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Hi there! Given the inequality -7x<-21, we divide both sides by -7, -7x/-7<-21/-7, -21/-7=3. Therefore, the answer is x>3.
User Paul Stanton
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-7x<-21

The only thing you need to do is just divide both sides by -7

-7x/-7<-21/-7

x>3

I hope that's help :)

User Sergio Andreotti
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