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# Inequalities Watch

1. I have the inequality:

I have to find all the possible integer values of x in the inequality above.
First I multiplied both sides by 5 to get:

I then divided the first sub-inequality (SI 1) by 2:
(SI 1)
(SI 1)
I then divided the second sub-inequality (SI 2) by 2:
(SI 2)
(SI 2)
Through combining SI 1 and SI 2 I form the following:

Here comes the easiest part of all, but somehow the hardest at the moment for me. I now have to find all the possible integer values of x. I easily understand that -5 will NOT be included as a possible integer because of the sign next to it. However the 7.5 part with the sign confuses me.

Is 8 included or not? WHY?
Or do I just have the possible integers to be:
-4,-3,-2,-1,0,1,2,3,4,5,6 and 7 ?

Whether 8 gets included or not, please explain to me why.
Thanks a lot.
2. 7.5 would be in there if it were an integer

but the most your x can be is 7.5, so how could it b 8?
3. the inequality sign is less than or equal to so everything up to and including 7.5 is a value of x but nothing about that so 8 wouldnt be
4. THANKS a LOT !

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Updated: April 10, 2012
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