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2014-11-19T20:58:48+08:00

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I am not sure if this is exact.. but I will try my best.
To solve for linear inequalities, it is the same as linear equations, but the sign is only different like >,<,≥,≤.

For example

2x+4<8
Subtract 4 to both sides
2x<4
Divide both sides by 2
x<2

Therefore the value of x is less than 2.

If the number x is negative, then the sign will change into its opposiote
like from > to <, from ≥ to ≤

Example

-2x+5<13
Subtract 5 to both sides
-2x<8
Divide both sides by -2
x>4

That means the value of x is greater than 4.

Hope this helps =)
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