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саяра41
@саяра41
June 2022
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Решите уравнение пожалуйста
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badakur
2) 3х - 15 = х + 3
3х - х = 15 + 3
2х = 18
х = 18 : 2
х = 9
4) 1,5х + 12 = - 4х + 1
1,5х + 4х = 1 - 12
5,5х = - 11
х = 11: 5,5
х = 2
1) х/3 + х/4 - х/6 = - 5/12
4х/12 + 3х/12 - 2х/12 = - 5/12
5х/12 = -5/12
5х = - 5
х = - 5 : 5
х = - 1
2) х/5 + х/4 - х/2 = - 1/4
4х/20 + 5х/20 - 10х/20 = - 5/20
- х/20 = - 5/20
х = 5
3) х/3 - х/15 - х/5 = 2/3
5х/15 - х/15 - 3х/5 = 10/15
х/15 = 10/15
х = 10
4) х/8 - х/6 - х/4 = - 7/8
3х/24 - 4х/24 - 6х/24 = - 21/24
- 7х/24 = - 21/24
- 7х = - 21
х = - 21: (- 7)
х = 3
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Answers & Comments
3х - х = 15 + 3
2х = 18
х = 18 : 2
х = 9
4) 1,5х + 12 = - 4х + 1
1,5х + 4х = 1 - 12
5,5х = - 11
х = 11: 5,5
х = 2
1) х/3 + х/4 - х/6 = - 5/12
4х/12 + 3х/12 - 2х/12 = - 5/12
5х/12 = -5/12
5х = - 5
х = - 5 : 5
х = - 1
2) х/5 + х/4 - х/2 = - 1/4
4х/20 + 5х/20 - 10х/20 = - 5/20
- х/20 = - 5/20
х = 5
3) х/3 - х/15 - х/5 = 2/3
5х/15 - х/15 - 3х/5 = 10/15
х/15 = 10/15
х = 10
4) х/8 - х/6 - х/4 = - 7/8
3х/24 - 4х/24 - 6х/24 = - 21/24
- 7х/24 = - 21/24
- 7х = - 21
х = - 21: (- 7)
х = 3