+0  
 
0
500
1
avatar

-17<-x+2<4

 Sep 5, 2015
 #1
avatar+130514 
+5

-17<-1x+2<4        our goal is to just have  "x"  in the middle

 

Subtract 2 from everything .....   this gives

 

-19 < -1x < 2      divide everything by -1 and "reverse" the inequality signs - we must do this when we multiply or divide by a negative in an inequality    so we have

 

19 > x > -2   or expressed another way.......    -2 < x < 19

 

 

 

cool cool cool

 Sep 5, 2015

0 Online Users