2t+8t+19=119
10t=119-19
10t=100
t=100:10
t=10
Ответ:
2t+8t=119-19
t=100:10=10
Ответ: t=10
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2t+8t+19=119
10t=119-19
10t=100
t=100:10
t=10
Ответ:
2t+8t=119-19
10t=100
t=100:10=10
Ответ: t=10