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lizafouks
@lizafouks
July 2022
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(1 целая 2/7x - 1/3)*21=2
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miron2077
Verified answer
Х*9/7*21-1/3*21=2
27х-7=2
27х=9
х=9:27
х=1/3
6 votes
Thanks 12
Erika45
(1 2/7x-1/3)*21=2;(9/7x-1/3)*21=2;21*9/7x-1/3*21=2;3x-1/7=2;3x=2+1/7;3x=15/7;x=15/7 : 3;x=5/7;
2 votes
Thanks 5
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Answers & Comments
Verified answer
Х*9/7*21-1/3*21=227х-7=2
27х=9
х=9:27
х=1/3