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инштейн4534
@инштейн4534
August 2022
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Решите уравнения а)х/7=10/35; б)8/15-у=9/20; г)5/6-(2/3-х)=7/12
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Don1A
Решение в приложении (фото).
2 votes
Thanks 3
Deniska69
-(-х)=х
Deniska69
в последнем задании
Don1A
да, точно, благодарю!
Deniska69
х/7=10/35;
х=10/35:1/7
х=10/35*7
х=10/5
х=2
б)8/15-у=9/20;
-у=9/20-8/15
у=8/15-9/20
у=32/60-27/60
у=5/60
у=1/12
г)5/6-(2/3-х)=7/12
5/6-2/3+х=7/12
х=7/12-5/6+2/3
х=7/12-10/12+8/12
х=5/12
2 votes
Thanks 6
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Answers & Comments
х=10/35:1/7
х=10/35*7
х=10/5
х=2
б)8/15-у=9/20;
-у=9/20-8/15
у=8/15-9/20
у=32/60-27/60
у=5/60
у=1/12
г)5/6-(2/3-х)=7/12
5/6-2/3+х=7/12
х=7/12-5/6+2/3
х=7/12-10/12+8/12
х=5/12