№352
1) |9y| = 0
9y = 0
y = 0
2) |x - 5| = 0
x - 5 = 0
x = 5
3) |3x - 1| = 0
3x - 1 = 0
3x = 1
x = 1/3
4) |7x - 2| = 0
7x - 2 = 0
7x = 2
x = 2/7
5) |5x - 4| = 0
5x - 4 = 0
5x = 4
x = 4/5
6) |10x - 1| = 0
10x - 1 = 0
10x = 1
x = 0,1
№353
1) |7,5| + |-5,3| = 7,5 - 5,3 = 2,2
2) |-12,8| - |-5 1/4) = 12,8 - 5,25 = 7,55
3) |-2 1/6| : |4 1/3| = (2 : 4) + (1/6 * 3) = 0,5 + 0,5 = 1
4) |5,7| * |-2 2/19| = 5,7 * 2 2/19 = 5 7/10 * 2 2/19 = 10 14/190 = 10 7/95
5) |-9 3/7| * |7/11| + |-2,9| = 66/7 * 7/11 + 2,9 = 6 + 2,9 = 8,9
6) |-6,2| : |0,2| - |-7,4| = 6,2 : 0,2 - 7,4 = 62 : 2 - 7,4 = 31 - 7,4 = 23,6:::