Question

\(\frac{x}{4}-\frac{3}{7}+\frac{2}{5}=\frac{31}{140}\)

Answer 1

\(\frac{x}{4}-\frac{3}{7}+\frac{2}{5}=\frac{31}{140}\)

\(\frac{x}{4}=\frac{31}{140}-\frac{2}{5}+\frac{3}{7}\)

\(\frac{x}{4}=\frac{1}{4}\)

\(\Rightarrow x=1\)

Answer 2

\(\frac{x}{4}-\frac{3}{7}+\frac{2}{5}=\frac{31}{140}\)

\(\frac{x}{4}-\frac{3}{7}=\frac{31}{140}-\frac{2}{5}\)

\(\frac{x}{4}-\frac{3}{7}=-\frac{5}{28}\)

\(\frac{x}{4}=-\frac{5}{28}+\frac{3}{7}\)

\(\frac{x}{4}=\frac{1}{4}\)

\(\Rightarrow x=1\)