Ponieważ:
a)
[tex] - 5x + 3 = 9 - 2x \\ - 5x + 2x = 9 - 3 \\ - 3x = 6 \\ x = - 2[/tex]
b)
[tex]6x + 4 = - 10 - x \\ 6x + x = - 10 - 4 \\ 7x = - 14 \\ x = - 2[/tex]
c)
[tex]1 \frac{2}{3} + \frac{1}{3} x = 1 \\ \frac{5}{3} + \frac{1}{3} x = 1 \\ 5 + x = 3 \\ x = 3 - 5 \\ x = - 2[/tex]
d)
[tex] \frac{x - 3}{5} = \frac{x}{2} \\ 2(x - 3) = 5x \\ 2x - 6 = 5x \\ 2x - 5x = 6 \\ - 3x = 6 \\ x = - 2[/tex]
