Witaj!
[tex]\frac{1}{3} \cdot (9x-3y-6)=3x+y-2\\\\L = \frac{1}{3} \cdot (9x-3y-6) = 3x-y-2\\\\P = 3x+y-2\\\\L \neq P[/tex]
[tex](3x-9y^{2}):3=x+3y^{2}\\\\L = (3x-9y^{2}):3 = x-3y^{2}\\\\P = x+3y^{2}\\\\L \neq P[/tex]
[tex](5x+4y):(-\frac{1}{3})=-15x-12y\\\\L = (5x+4y):(-\frac{1}{3})=-15 x-12y\\\\P = -15x-12y\\\\L = P[/tex]
[tex]\frac{6x^{2}-14x-4}{2}=3x^{2} -7x-2\\\\L = \frac{6x^{2}-14x-4}{2} = (6x^{2}-14x-4):2=3x^{2}-7x-2\\\\P = 3x^{2} -7x-2\\\\L = P[/tex]
odp. Równości prawdziwe to równość trzecia i czwarta.
Pozdrawiam!
