Inequalities 

Inequalities are like an equation , however instead of one solution, they offer a range of solutions. 
 Let's remember

≥ or ≤ (this means I am including the number as part of my answer, for example X≥9, X can be greater or equal to 9, I need to use [ or ] to set my interval notation answer)


> or < ( this means I am NOT including the number as part of my answer, for example X > 9, X has be greater than 9, I need to use ( or ) to set my interval notation answer)


for example:
2X -5 ≤ 6 + 3x -2

2X -3X≤ 6 -2 +5

-X≤ 9

(anytime you divide by a negative number, in this case -1, you need to switch the sign (≤ to ≥) and the change the sign of 9 to -9
X≥-9

The following videos will show you how to work with them.