Question

7+9х/4+2х-х/9=7х+1 решение

Answer 1

$7 + \frac{9x}{4} + 2x - \frac{x}{9} = 7x + 1 \\ \frac{9x}{4} - \frac{x}{9} + 2x - 7x = 1 - 7 \\ \frac{77}{36} x - 5x = - 6 \\ - \frac{103}{36} x = - 6 \\ \frac{130}{36} x = 6 \\ 130x = 6 \times 36 \\ 130 x = 216 \\ x = \frac{216}{130} \\ x = \frac{108}{65}$
Вот)
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