5t-1=0
5t=1
t=1:5
t=0,2
Проверка
5х0,2-1=0
1-1=0
0=0
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Answers & Comments
5t-1=0
5t=1
t=1:5
t=0,2
Проверка
5х0,2-1=0
1-1=0
0=0