Odpowiedź :
Odpowiedź:
[tex]\frac{1}{5} - \frac{1}{5}x = \frac{2}{5}x - 2(x+3)\\ \frac{1}{5} - \frac{1}{5}x = \frac{2}{5}x - 2x - 6\\ \frac{7}{5}x = -\frac{31}{5} \\7x = -31\\x = -4\frac{3}{7}[/tex]
Odpowiedź:
[tex]\frac{1}{5}-0,2x=\frac{2}{5}x-2(x+3)\\\\\frac{1}{5}-\frac{1}{5}x=\frac{2}{5}x-2x-6\ \ /\cdot5\\\\1-x=2x-10x-30\\\\1-x=-8x-30\\\\-x+8x=-30-1\\\\7x=-31\ \ /:7\\\\x=-\frac{31}{7}\\\\x=-4\frac{3}{7}[/tex]