Ответ:
13t=130
t= 10.
Ответ:10
5t+8t+23=153
13t+23=153
13t=153-23
t=130:13
t=10
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Ответ:
13t=130
t= 10.
Ответ:10
Ответ:
5t+8t+23=153
13t+23=153
13t=153-23
13t=130
t=130:13
t=10