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olipirolga
@olipirolga
July 2022
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Решите уравнения:
а) -2/7-(3/4-х)=-4,5
б) -5/11-(х+1/22)=-1,5
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Answers & Comments
Regent1828
Verified answer
А) -2/7 -(3/4 - x) = - 4,5
x = (8 + 21)/28 - 4,5
x = 29/28 - 45/10
x = 145/140 - 630/140
x = 485/140 = 97/28 = 3 13/28
Ответ: 3 13/28
б) - 5/11 - (x + 1/22) = - 1,5
- 10/22 - x - 1/22 = - 1,5
1,5 - 0,5 = x
x = 1
Ответ: 1
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Answers & Comments
Verified answer
А) -2/7 -(3/4 - x) = - 4,5x = (8 + 21)/28 - 4,5
x = 29/28 - 45/10
x = 145/140 - 630/140
x = 485/140 = 97/28 = 3 13/28
Ответ: 3 13/28
б) - 5/11 - (x + 1/22) = - 1,5
- 10/22 - x - 1/22 = - 1,5
1,5 - 0,5 = x
x = 1
Ответ: 1