29b+172=(5³)*3
29b+172=125*3
29b+172=375
29b=375-172
29b=203
b=203:29
b=7
ответ: 7
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29b+172=(5³)*3
29b+172=125*3
29b+172=375
29b=375-172
29b=203
b=203:29
b=7
ответ: 7