Question

Решите уравнение
1/4x+2/5x=13

Answer 1

$frac{1}{4x}+ frac{2}{5x}=13$
$frac{5}{20x} + frac{8}{20x}=13$
$frac{13}{20x}=13$
$13=13*20x$
$20x=1$
$x= frac{1}{20}=0,05$

Answer 2

[tex]/frac{1}{4x}+/frac{2}{5x}=13{/tex}