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1. Solve using the multiplication method. What is the solution set? -7x>1/15

Submitted: 339 days and 2 hours ago.
Category: Math
Value: $9
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Level: 2; Subject: Intermediate Algebra

Already Tried:
Everything. Most recently I have met with a tutor, asked friends, my children, people at work and I just can't understand.

Answer

Hi,

-7x > 1/15

Multiply both sides by (-1/7)

-7x(-1/7) > 1/15(-1/7)

direction of the inequalitiy changes when multiplied by a negative number,

x < -1/105

In terms of set builder notation: {x | x < -1/105}

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Expert: abozer
Pos. Feedback: 99.9 %
Accepts: 
Answered: 12/19/2008

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