Question

РЕШИИИТЕ УРАВНЕНИИИЕ ХЕЛП.

Answer 1

$\frac{2x-3}{5}= \frac{9}{10}$
$\frac{1}{5}*(2x-3)= \frac{1}{5} * \frac{9}{2}$
$2x-3=\frac{9}{2}$
$2*(2x-3)=2*\frac{9}{2}$
$4x-6=\frac{2*9}{2*1}$
$4x-6=\frac{9}{1}$
$4x-6=9$
$4x=6+9$
$4x=15$
$\frac{1}{4}*4x= \frac{1}{4}*15$
$\frac{4*x}{4*1}= \frac{1*15}{4}$
$\frac{x}{1}= \frac{15}{4}$
$x= \frac{15}{4}$

Ответ: $\frac{15}{4}$