Question

Хелп ми плиз
2/5 = 6/x+3

Answer 1

$\frac{2}{5} = \frac{6}{x} + 3\\\\\frac{2}{5} - 3 = \frac{6}{x}\\\\\frac{2}{5} - \frac{15}{5} = \frac{6}{x}\\\\-\frac{13}{5} = \frac{6}{x}\\\\-13x = 30\\\\x = - \frac{30}{13}$

Answer 2

Пошаговое объяснение:

$\frac{2}{5} = \frac{6}{x} + 3$

$\frac{2}{5} = 3 + \frac{6}{x}$

$3 + \frac{6}{x} = \frac{2}{5}$

$\frac{3(x + 2)}{x} = \frac{2}{5}$

$15(x + 2) = 2x$

$15x + 30 = 2x$

$13x = - 30$

$x = - \frac{30}{13}$