Question

Решите уравнение . Срочно , !

Answer 1

Правило пропорции
$3.4(2x - 1) = 5.6(x + 1.2) \\ 6.8x - 3.4 = 5.6x + 6.72 \\ 1.2x = 10.12 \\ x = \frac{1012 \times 10}{100 \times 12} = \frac{1012}{120} = 8 \frac{52}{120} = 8 \frac{26}{60} = 8 \frac{13}{30}$

Answer 2

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