найдите x: 1)8x/0,5=8,4/0,15
2)8/9=0,2x/0,45
3)18,2/5,6=19,5/4x
4)6/7=3,5x/24,5
2)8/9=0,2x/0,45
3)18,2/5,6=19,5/4x
4)6/7=3,5x/24,5
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8х/0,5=8,4/0,158х=0,5*8,4 /0,15
х=4,2/8*0,15
х=3,5
8/9=0,2х/0,45
0,2х=8*0,45/9
х=0,4/0,2
х=2
18,2/5,6=19,5/4х
4х=5,6*19,5/18,2
х=6/4
х=1,5
6/7=3,5х/24,5
3,5х=6*24,5/7
х=21/3,5
х=6