\(x+30\%.x+1,5x=2,8\)
=>\(x+\frac{3}{10}.x+\frac{3}{2}.x=2,8\)
=>\(x.\left(1+\frac{3}{10}+\frac{3}{2}\right)=2,8\)
=>\(x.\frac{14}{5}=2,8\)
=>\(x=2,8:\frac{14}{4}\)
=>\(x=1\)
Vậy \(x=1\)
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