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Кристалина12
@Кристалина12
July 2022
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35 баллов. Уравнение.
1) 2 : х - 0,4 = 1 : 0,4
2) 3 : 4 = х - 1 : 3,2
3) 36 : 35 = 1 : 5х : 1 : 12
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Answers & Comments
daurenovna13
1) 2 : x -0.4=1:0,4
2:x-0,4=1:2/5
2:x-0,4=1·5/2
2:x-0,4=5/2
2:x-0,4=2,5
2:x=2,5+0,4
2:x=2,9
x=2,9·2
x=5,8
2)3:4=x-1:3,2
3/4=x-1:16/5
3/4=x-1·5/16
3/4=x-5/16
x-5/16=3/4
x=3/4`⁴+5/16`¹
x=12/16+5/16
x=17/16
x=1 1/16
3) 36:35=1:5x:1:12
36/35=1·1/5x:1·1/12
36/35=1/5x:1/12
1/5x:1/12=36/35
1/5x=36/35·1/12
1/5x=36/420
1/5x=13/140
x=13/140:1/5
x=13/140·5
x=65/140
x=13/28
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Answers & Comments
2:x-0,4=1:2/5
2:x-0,4=1·5/2
2:x-0,4=5/2
2:x-0,4=2,5
2:x=2,5+0,4
2:x=2,9
x=2,9·2
x=5,8
2)3:4=x-1:3,2
3/4=x-1:16/5
3/4=x-1·5/16
3/4=x-5/16
x-5/16=3/4
x=3/4`⁴+5/16`¹
x=12/16+5/16
x=17/16
x=1 1/16
3) 36:35=1:5x:1:12
36/35=1·1/5x:1·1/12
36/35=1/5x:1/12
1/5x:1/12=36/35
1/5x=36/35·1/12
1/5x=36/420
1/5x=13/140
x=13/140:1/5
x=13/140·5
x=65/140
x=13/28