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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}
Expert:
abozer
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Answered:
12/19/2008
Math Answer Team
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