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Ирина2583022
@Ирина2583022
August 2022
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ПОМОГИТЕ!! СРОЧНО!! ПОЖАЛУЙСТА!!
РЕШИТЕ УРАВНЕНИЯ:
А) (Х-8)*2/5=2
Б) 2 1/3Х-2 1/3=2 1/3
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99tasha
Verified answer
А) х-8=2:2/5
х-8=2*5/2
х-8=5
х=5+8
х=13
б) 7/3х=7/3+7/3
7/3х=14/3
х=14/3:7/3
х=14/3*3/7
х=2
1 votes
Thanks 1
Oksana14011977
А)
(х - 8) * 2/5 = 2
х - 8 = 2 : 2/5
х - 8 = 2 * 5 /2
х - 8 = 5
х = 5 + 8
х = 13
проверка:
(13 - 8) * 2/5 = 2
5 * 2/5 = 2
б)
2 1/3х - 2 1/3 = 2 1/3
2 1/3х = 2 1/3 + 2 1/3
2 1/3 х = 4 2/3
х = 4 2/3 : 2 1/3
х = 2
проверка:
2 1/3 * 2 - 2 1/3 = 2 1/3
4 2/3 - 2 1/3 = 2 1/3
2 1/3 = 2 1/3
3 votes
Thanks 2
Ирина2583022
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Answers & Comments
Verified answer
А) х-8=2:2/5х-8=2*5/2
х-8=5
х=5+8
х=13
б) 7/3х=7/3+7/3
7/3х=14/3
х=14/3:7/3
х=14/3*3/7
х=2
(х - 8) * 2/5 = 2
х - 8 = 2 : 2/5
х - 8 = 2 * 5 /2
х - 8 = 5
х = 5 + 8
х = 13
проверка:
(13 - 8) * 2/5 = 2
5 * 2/5 = 2
б)
2 1/3х - 2 1/3 = 2 1/3
2 1/3х = 2 1/3 + 2 1/3
2 1/3 х = 4 2/3
х = 4 2/3 : 2 1/3
х = 2
проверка:
2 1/3 * 2 - 2 1/3 = 2 1/3
4 2/3 - 2 1/3 = 2 1/3
2 1/3 = 2 1/3