\(\dfrac{4}{5}-x+\dfrac{1}{3}=-0,75\\ -x+\dfrac{17}{15}=-\dfrac{3}{4}\\x=\dfrac{113}{60}\)
=>x-1/3=4/5+3/4=16/20+15/20=31/20
=>x=31/20+1/3=93/60+20/60=113/60
\(\Leftrightarrow x-\dfrac{1}{3}=\dfrac{4}{5}--0,75=\dfrac{31}{20}\\ \Leftrightarrow x=\dfrac{31}{20}+\dfrac{1}{3}=\dfrac{113}{60}\)