Ответ:
1)270x+78y
2)528b+63z
3)480b+170x
4)246a+309b
5)2(75a+88x)
6)192x+236c-40b
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Ответ:
1)270x+78y
2)528b+63z
3)480b+170x
4)246a+309b
5)2(75a+88x)
6)192x+236c-40b