Question

Berapakah hasil dari 5 I 2x-1 I = 11

Answer 1

5 | 2x - 1| = 11
2x -1 = 11/5
2x = 11/5 + 1
2x = 16/5
  x = 16/5 : 2/1
  x = 16/5 x 1/2
  x = 8/5

5 | 2x - 1| = - 11
2x -1 = - 11/5
2x = - 11/5 + 1
2x = - 11/5 + 5/5
2x = - 6/5
  x = - 6/5 : 2/1
  x = - 6/5 x 1/2
  x = - 6/10
  x = - 3/5

Daerah penyelesaiannya = { 8/5 , - 3/5 }

Answer 2

5(2x-1)=11
10x-5=11
10x=16
X=1,6