how do we review inequalities

inequalities is pretty basic.Having an inequality problem like 2x+10<14 is the same as 2x+10 = 14.
We want to get x by it self so we substrate 10 from both sides.
We get 2x < 24 now, we divide 2 from both sides we get x <12 on a number line the twelve will have a open circle and the line will go to the left side.
Now lets try a harder one for example 2x+3y<15
First we try to get y by it self so we substrate 2x from both sides we are left with 3y<-2x+15
Now divide by 3 to get y<2/3x+5

x < n when the sign is like this you have open circle and we shade to the left.
x < n when the line is under the less then sign then the circle is closed with  the shade going to the left.
x > n when the sign  is like this one the circle is open with the shaded line going to the right.
x > n and finally when the greater sign has the line under the circle is shaded and the shaded line goes to the right.

now that you guys have a understanding check out the link below for more problem:

• http://teachers.henrico.k12.va.us/math/hcpsalgebra1/Documents/4-4/solvcompinequ.htm

and for more help check out the two other links:

• http://www.platinumgmat.com/gmat_study_guide/inequalities_absolute_value 
• http://www.youtube.com/watch?v=a0-q0FUZ11o&feature=related