Odpowiedź :
[tex]x - 3x + \frac{1}{4} = \frac{3}{8} \\-2x = \frac{3}{8} - \frac{1}{4}\\-2x = \frac{3}{8} - \frac{2}{8}\\-2x = \frac{1}{8} \\x = -\frac{1}{16} \\[/tex]
[tex]x - 3x + \frac{1}{4} = \frac{3}{8} \\-2x = \frac{3}{8} - \frac{1}{4}\\-2x = \frac{3}{8} - \frac{2}{8}\\-2x = \frac{1}{8} \\x = -\frac{1}{16} \\[/tex]