Question

Упростите выражения: 2,3(1,2x-5,4)+134,2
24,5y+13(1,9-3,1y)

Answer 1

$2.3 \times (1.2x - 5.4) + 134.2 = 2.76x - 12.42 + 134.2 = 2.76x - 121.78 \\ \\ 24.5y + 13(1.9 - 3.1y) = 24.5y + 24.7 - 40.3y = 24.7 - 15.8y$

Answer 2

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