Question

Решите уравнение
4.8-3(2,1y-1)=9,4-6,7y

Answer 1

$4.8 - 3 \times (2.1y - 1) = 9.4 - 6.7y \\ \\ 4.8 - 6.3y + 3 - 9.4 + 6.7y \\ \\ 0.4y - 1.6 = 0 \\ \\ 0.4y = 1.6 \\ \\ y = 1.6 \div 0.4 \\ \\ y = 4$

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