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2x-x<-3-1
x<-4
&
-|2x+1|<-|x-3|
-2x-1<-x+3
-2x+x<3+1
-x<4
x>-4
HP -4<x>-4
b. |3x+7|>|4x-8|
3x-4x>-8-7
-x>-15
x<15
&
-|3x+7|>-|4x-8|
-3x-7>-4x+8
-3x+4x>8+7
x>15
HP 15<x>15
cek lgi,,,
semoga dapat membantu,,
2x - x < -3 -1
x < -4
B. 3x + 7 > 4x - 8
8 + 7 > 4x - 3x
15 > x