[tex]\displaystyle -\frac{2}{5}x=\frac{8}{25}\\ \\-\frac{5}{2}(-\frac{2}{5})x=-\frac{5}{2}*\frac{8}{25}\\ \\x=-\frac{4}{5}=-0,8[/tex]
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[tex]\displaystyle -\frac{2}{5}x=\frac{8}{25}\\ \\-\frac{5}{2}(-\frac{2}{5})x=-\frac{5}{2}*\frac{8}{25}\\ \\x=-\frac{4}{5}=-0,8[/tex]