Separate the number 21 into three parts so
that the second number is twice the first
mumber,...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 20.10.2021 14:00, janiyahlanae66
Separate the number 21 into three parts so
that the second number is twice the first
mumber, and the third number is 4 less than
the second number
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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