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vredina16378
@vredina16378
August 2022
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Решите уравнения
6 класс
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fanta2310
Verified answer
А) 24 * (2 3/4х - 1 5/6х) = 33
2 9/12х - 1 10/12х = 33 : 24
1 21/12х - 1 10/12х = 33/24
11/12х = 11/8
х = 11/8 : 11/12
х = 11/8 * 12/11
х = 12/8 = 3/2 = 1,5
б) 11/12х + 5 5/8 = 10 2/3
11/12х = 10 2/3 - 5 5/8
11/12х = 10 16/24 - 5 15/24
11/12х = 5 1/24
х = 5 1/24 : 11/12
х = 121/24 * 12/11
х = 11/2 = 5 1/2 = 5,5
1 votes
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сашаok
А)умножаем
получается
48х+18х-24х-20х=33
22х=33
х=3/2
х=1.5
б)приводим к общему знаменателю 24
22/24х+135/24=256/24
сокращаем
22х+135=256
22х=121
2х=11
х=11/2
х=5.5
0 votes
Thanks 0
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Answers & Comments
Verified answer
А) 24 * (2 3/4х - 1 5/6х) = 332 9/12х - 1 10/12х = 33 : 24
1 21/12х - 1 10/12х = 33/24
11/12х = 11/8
х = 11/8 : 11/12
х = 11/8 * 12/11
х = 12/8 = 3/2 = 1,5
б) 11/12х + 5 5/8 = 10 2/3
11/12х = 10 2/3 - 5 5/8
11/12х = 10 16/24 - 5 15/24
11/12х = 5 1/24
х = 5 1/24 : 11/12
х = 121/24 * 12/11
х = 11/2 = 5 1/2 = 5,5
получается
48х+18х-24х-20х=33
22х=33
х=3/2
х=1.5
б)приводим к общему знаменателю 24
22/24х+135/24=256/24
сокращаем
22х+135=256
22х=121
2х=11
х=11/2
х=5.5