Question

Решите уравнение :

$\frac{3.6 + x}{x} = \frac{8}{2}$

Answer 1

$\frac{3.6+x}{x}= \frac{8}{2}$
$\frac{3.6+x}{x} = \frac{8}{2}, x \neq 0$
$\frac{ \frac{18}{5}+x }{x} =4$
$\frac{ \frac{18+5x}{5} }{x} =4$
$\frac{18+5x}{5x} =4$
$18+5x=20x$
$5x-20x=-18$
$-15x=-18$
$x= \frac{6}{5} , x\neq 0$
$x= \frac{6}{5}$
$x=1 \frac{1}{5} ,x=1.2$