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Kikokiko
matematika

matematika

2m-[n-(4m+3n-6)+(3m+6n-15)]

2 odpovede
2m-[n-(4m+3n-6)+(3m+6n-15)]=2m-[n-4m-3n+6+3m+6n-15]=2m-[4n-m-9]=2m-4n+m+9=3m-4n+9
Snáď je to to, čo ste potrebovali. :)
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Zmazaný účet
3m-4n+9 :)