Odpowiedź:
a)
[tex] \frac{2x + 3}{5} = \frac{2 - x}{3} - x \: \: \: | \times 15 \\ 3(2x + 3) = 5(2 - x) - 15x \\ 6x + 9 = 10 - 5x - 15x \\ 26x =1 \\ x = \frac{1}{26} [/tex]
b)
[tex] \frac{x + 1}{2} - \frac{x - 1}{3} = \frac{1}{4} \: \: \: | \times 12 \\ 6x + 6 - 4x + 4 = 3 \\ 2x = - 7 \\ x = - 3.5[/tex]
c)
[tex] \frac{4x + 7}{2} - \frac{5x - 1}{6} = x + 5 \: \: \: | \times 12 \\ 24x + 42 - 10x + 2 = 12x + 60 \\ 12x = 16 \\ x = 1 \frac{1}{3} [/tex]
d)
[tex] \frac{x + 5}{4} - \frac{2x + 1}{8} = \frac{1}{2} (2 - x) \: \: \: | \times 8\\ 2x + 10 - 2x - 1 = 8 - 4x \\ 4x = - 1 \\ x = - \frac{1}{4} [/tex]
