\(-25\%x-x=1.25\)
\(-\frac{1}{4}x-x=\frac{5}{4}\)
\(\left(-\frac{1}{4}-1\right)\cdot x=\frac{5}{4}\)
\(-\frac{5}{4}\cdot x=\frac{5}{4}\)
\(x=-\frac{5}{4}:\frac{5}{4}\)
\(x=-1\)
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