Решите уравнение:
1) |x| + 6 = 13
2) |x| - 7 = -12
3) 7|x| - 3 = 0
4) |x - 5| = 4
5) |9 + x| = 0
6) |x - 4| = -2
7) |3x + 4| = 2
8) |2x + 1| + 13 = 14
9) |3x - 2| = |x + 1|
10) |x + 4| = |x - 6|
11) ||x| - 3| = 5

1) |х|= 7х=7 х=-72) |х|=-5розв. не існує3) 7|х|=3|х|=3/7х=3/7 х=-3/74)х-5=4 х-5=-4х=9 х=1