Ответ:
Пошаговое объяснение:
1. 81b+19b = b(100) = 11 × 100 = 1100
2.92x-38x = x(54) = 31 × 54 = 1674
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Ответ:
Пошаговое объяснение:
1. 81b+19b = b(100) = 11 × 100 = 1100
2.92x-38x = x(54) = 31 × 54 = 1674