Помогите решить 5/12|x|-3,8+1/9|x|=0
5/12|x|-3,8+1/9|x|=0
(5/12+1/9) * |x|=3.8
5/12 + 1/9 = (15 + 4)/36 = 19/36
19/36 |x|= 38/10
|x| = 38/10 * 36/19 = 7.2
x=7.2
x=-7.2