SOLUTION: please help me solve this problem by using set notation {{{-3<3-2x<9}}}

Algebra ->  Inequalities -> SOLUTION: please help me solve this problem by using set notation {{{-3<3-2x<9}}}      Log On


   

Question 366915: please help me solve this problem by using set notation
-3%3C3-2x%3C9
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
-3<3-2x<9
---
subtract 3 along the line to get:
-6 < -2x < 6
---
Divide by -1 along the line:
Note: That will reverse the inequalities.
-----
-6 < 2x < 6
Divide by 2 along the line:
---
-3 < x < 3
----
Solution: {x | -3 < x < 3, x E R}
-----------------------------------
Cheers,
Stan H.