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Asriel2006
@Asriel2006
July 2022
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Решите уравнение 7*(3+k)=33+5k
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maxbukreev23
Verified answer
7*(3+k)=33+5k;
21+7k=33+5k;
7k-5k=33-21;
2k=12;
k=12/2=6;
проверим:
7*(3+6)=33+5*6;
7*9=33+30;
63=63 всё верно;
ответ: k=6;
1 votes
Thanks 1
kopvel
Verified answer
7*(3+k)=33+5k
21+7k=33+5k
7k-5k=33-21
2k=12
k=12/2
k=6
2 votes
Thanks 0
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Answers & Comments
Verified answer
7*(3+k)=33+5k;21+7k=33+5k;
7k-5k=33-21;
2k=12;
k=12/2=6;
проверим:
7*(3+6)=33+5*6;
7*9=33+30;
63=63 всё верно;
ответ: k=6;
Verified answer
7*(3+k)=33+5k21+7k=33+5k
7k-5k=33-21
2k=12
k=12/2
k=6