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anastasiya0090
@anastasiya0090
August 2022
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решите уравнения
а) 8х-341=1-х;
в)1,78z-1,2=2,48z+2,44;
и) 7х(6х-5)+42х=3х(5+14х)+49.
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Vikulka0017
А)8х-341=1-х
8х+х=341+1
9х=342|:9
х=38
в)1.78z-1.2=2.48z+2.44
1.78z-2.48z=1.2+2.44
-0.7z=3.64|:(-0.7)
z=-5.2
последний не смогла!
2 votes
Thanks 2
anastasiya0090
спасибо :)
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Answers & Comments
8х+х=341+1
9х=342|:9
х=38
в)1.78z-1.2=2.48z+2.44
1.78z-2.48z=1.2+2.44
-0.7z=3.64|:(-0.7)
z=-5.2
последний не смогла!