[tex]\it Not\breve{a}m\ \ pre\c{\it t}ul\ \ ini\c{\it t}ial\ \ cu\ \ x.\\ \\ x-15\%\ din\ x\ =225 \Rightarrow x-\dfrac{15}{100}\cdotx = 225 \\ \\ \\ Elimin\breve{a}m\ \ numitorul\ \ \c {s}i\ rezult\breve{a} : \\ \\ \\ 100x-15x=22500 \Rightarrow 85x = 22500 \Rightarrow x = 22500 : 85 = 264,70 \ lei[/tex]
