Zadanie w załączniku

Witaj :)
Cena netto:
Cena netto:
[tex]N+0,08N=2,70\\\\1,08N=2,70\ /:1,08\\\\N=\frac{2,70}{1,08}\\\\\boxed{N= 2,50\ [zl]}[/tex]
Cena netto:
[tex]N+0,23N=3,69\\\\1,23N=3,69\ /:1,23\\\\N=\frac{3,69}{1,23}\\\\\boxed{N= 3,00\ [zl]}[/tex]