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Mocha
Posts:
4
From:
Nonbeing
Registered:
10/25/09


Re: Can somebody please solve these?
Posted:
Oct 29, 2009 5:31 PM


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...
[2x1]<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.



