Question

Resolver valor absoluto:

a) |2x+1| > 4x

b) |x-1| ≤ 3

Answer 1

a)2x+1>4x
-2x>-1
2x<1
x<1/2
2x+1>-4x
6x>-1
x>-1/6
(-1/6 , 1/2)

b) x-1<3
x<4
x-1<-3
x<-2
[-2 , +inf)