Question

solve |5x-8|>12?
A.{X|-0.84 or <-0.8} D.{x|x<-4 or >0.8}

Answer 1

HINT: |5x-8|>12 is same as 5x-8 > 12 and -12 > 5x-8

Answer 2

still dont get it, but i dont think the answers B.

Answer 3

divided 2 case, do like @micahwood50 said
case 1st :
5x-8 > 12
5x > 12 + 8
5x > 20
5x/5 > 20/5
x > 4 ...... (1)
case 2nd :
-12 > 5x-8 or
5x-8 < -12
5x < -12 + 8
5x < -4
x < -4/5
x < -0.8 ..... (2)
represent (1) and (2) and joining for both on line numbers