Odpowiedź:
a)[tex] - \frac{2}{7} x = - 14 \\ - 2x = - 98 \\ x = 49[/tex]
b)
[tex] \frac{4}{9} x = - 11 \\ 4x = - 99 \\ x = - 24 \frac{3}{4} [/tex]
c)[tex]x - 5 = - 7 \\ x = - 7 + 5 \\ x = - 2[/tex]
d)
[tex] - 3x + 1 = 2 \\ - 3x = 2 - 1 \\ - 3x = 1 \\ x = - \frac{1}{3} [/tex]
Liczę na naj ;)
