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Topic: Can somebody please solve these?
Replies: 1   Last Post: Oct 29, 2009 5:31 PM

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Mocha

Posts: 4
From: Non-being
Registered: 10/25/09
Re: Can somebody please solve these?
Posted: Oct 29, 2009 5:31 PM
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Sorry I don't understand the way you put the first and last question, but I'm pretty sure I can do the second one...

[2x-1]<9

You basically solve inequalities like equations.

So -

Step 1:
Isolate the unknown term: 2x - 1 + 1 < 9 + 1

Step 2:
Simplify: 2x < 10

Step 3:
Divide both sides of the inequality by the coefficient of the unknown term: 2x/2 < 10/2 => x < 5

So if you want the solution set in positive integers, then the solution set will be: {1,2,3,4,5}

But basically your answer is x < 5...

Hope I helped! =)

Mocha.



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