3. Решите уравнения:
1) |9y| = 0;
3) [3x - 1| = 0;
5) 5x - 4 = 0;
2) | - 5| = 0;
4) |7x-2| = 0;
6) [10x -1| = 0.
1) |9y| = 0;
3) [3x - 1| = 0;
5) 5x - 4 = 0;
2) | - 5| = 0;
4) |7x-2| = 0;
6) [10x -1| = 0.
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Answers & Comments
1)|9y|=0
9y=0
y=0
2)|x-5|=0
x-5=0
x=0+5
x=5
3)|3x-1|=0
3x-1=0
3х=1
x=1/3
4) |7x-2|=0
7x-2=0
7х=2
x=
5) |5x-4|=0
5x-4=0
5х=4
x=
6) |10x-1|=0
10x-1=0
10х=1
x=0.1