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4<2(1-3x)<10

 Oct 13, 2015

Best Answer 

 #1
avatar+94 
+5

4<2(1-3x)<10

2<1-3x<10

1<-3x<9

-1/3<x<-3

 Oct 13, 2015
 #1
avatar+94 
+5
Best Answer

4<2(1-3x)<10

2<1-3x<10

1<-3x<9

-1/3<x<-3

YangShizzle Oct 13, 2015
 #2
avatar+109812 
+5

Good try Yang Shizzle but you made a little mistake . :(

 

4<2(1-3x)<10

 

Divide all by 2

2 < 1-3x < 5

 

subtract 1 from all three"sides"

1 < -3x < 4

 

now seperate 

1< -3x     and       -3x<4

 

divide by -1  which means you have to turn the signs around

-1>+3x     and       3x>-4

3x<-1       and        x>-4/3

x<-1/3        and         -4/3 <x

 

swap the order

-4/4< x       and        x<-1/3

-4/3  < x < -1/3

 Oct 14, 2015

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