Odpowiedź :
[tex]2x-4 = 5x + 1\\\\2x-5x = 1+4\\\\-3x = 5 \ \ /:(-3)\\\\x = -\frac{5}{3}\\\\\underline{x = -1\frac{2}{3}}[/tex]
Spr.
[tex]L = 2\cdot(-\frac{5}{3})-4 =-\frac{10}{3}-4 = -3\frac{1}{3}-4 = -7\frac{1}{3}\\\\P = 5\cdot(-\frac{5}{3})+1 = -\frac{25}{3}+1 = -8\frac{1}{3}+1 = -7\frac{1}{3}\\\\L = P[/tex]