\(\left(\dfrac{x}{7}+0,25\right)-\dfrac{1}{3}=-\dfrac{1}{28}\)
\(\dfrac{x}{7}+\dfrac{1}{4}=-\dfrac{1}{28}+\dfrac{1}{3}\)
\(\dfrac{x}{7}+\dfrac{1}{4}=\dfrac{28}{84}+\dfrac{-3}{84}\)
\(\dfrac{x}{7}+\dfrac{1}{4}=\dfrac{25}{84}\)
\(\dfrac{x}{7}=\dfrac{25}{84}-\dfrac{1}{4}\)
\(\dfrac{x}{7}=\dfrac{25}{84}-\dfrac{21}{84}\)
\(\dfrac{x}{7}=\dfrac{4}{84}\)
\(\dfrac{x}{7}=\dfrac{1}{21}\)
=> x.21=1.7
x.21=7
x=7:21
\(x=\dfrac{1}{3}\)
