Question

НАЙДИТЕ ИКС 4/Х-5= 2/9
11/2 = 3Х+2/0,8

Answer 1

$frac{4}{x} -5= frac{2}{9} \ \ frac{4}{x} =frac{2}{9} +5\ \ frac{4}{x}=frac{47}{9} \ \ frac{x}{4}= frac{9}{47} \ \ x= frac{9}{47}*4\ \ x= frac{36}{47}$