In \(\displaystyle{7}{x}–{5}{x}{>}-{4}{x}\) the expressions \(\displaystyle{7}{x}–{5}{x}{\quad\text{and}\quad}-{4}{x}\) are joined with > inequality. It is obtained when an expression is related with another expression using the inequalities sign \((<, >, \le, \ge)\).

That means, that \(\displaystyle{7}{x}–{5}{x}{>}-{4}{x}\) is an inequality.