Question

302*. Решите уравнения:
1) ||x - 3|= 0;
2) ||x|+2 = 0;
3) 4-x|| = 0;
4) |2|x|-5| = 0;
5) |7-2|x|| = 0;
6) 4|x|-9 = |x|.

Answer 1

1)
x-3=0
x=3
2)
x=-2
0
3)
4-x=0
-x=-4
x=4