TANDA MUTLAK 1.|x-7| = |3x-1| 2. |3+2x| =|4-x| 3.|x+2|=|2x-5| 4.|3-x|=|4x+12| 5.|3x-7|=|5x+9| 6.|3x-6|=|8x-16| 7.|½x+5|-2= |⅓x-2| TOLONG yaa + pakai cara. THX

1 |x - 7| = |3x - 1|
|x - 7 | = (3x - 1) atau -(3x - 1)
x - 7 = 3x - 1
x - 3x = -1 + 7
-2x = 6
x = -3
x - 7 = -(3x - 1)
x - 7 = -3x + 3
x + 3x = 3 + 7
4x = 10
x = 10/4
x = 5/2
6 |3x - 6| = |8x - 16|
|3x - 6| = 8x - 16 atau -(8x - 16)
3x - 6 = 8x - 16
3x - 8x = -16 + 6
-5x = -10
x = 2
3x - 6 = -(8x -16)
3x - 6 = -8x + 16
3x + 8x = 16 + 8
11x = 24
x = 24/11