Question 915888:  I am having difficulty writing set builder notations. 
 {0,3,6,9,12} 
{-3,-2,-1,0,1,2,3} 
{m,n,o,p}
 
How would I write something like: 
x where x is a positive multiple of 3 less than 15? 
{ x | x =  ???? do I just write out the words or does it have to be an equation? 
{ x | x = whole numbers greater than -4 and less than 4 
{ x| I have no idea how to do one with letters :-( 
 Answer by richard1234(7193)      (Show Source): 
You can  put this solution on YOUR website! There are several ways to write the sets formally. Here are examples:
 
 
{0,3,6,9,12} =   (  means that x leaves a remainder of zero when divided by 3). An alternate way is  .
 
 
{-3,-2,-1,0,1,2,3} can be written as   (all x such that x is an integer and |x| is less than or equal to 3)
 
 
{m,n,o,p} I don't really know of a nice way to state this in set-builder notation, other than   which is correct but doesn't make much sense since it is much longer than writing {m,n,o,p}.
 
 
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