5/12|х|+3,2-1/9|х|=0

5/12|x| + 3,2 - 1/9|x| = 0
5/12|x| - 1/9|x| = 0
11/36|x| = 0
36|x| = 0:11
36|x| = 0
|x|=0
x=0