a)
[tex]5x = 22 - 7 \\ 5x = 15 \\ x = 3[/tex]
b)
[tex]5x - x = 7 + 5 \\ 4x = 12 \\ x = 3[/tex]
c)
[tex]2x + 8 = x - 7 \\ 2x - x = - 7 - 8 \\ x = - 15[/tex]
d)
[tex]x - 6x = \frac{2}{6} - \frac{3}{6} \\ - 5x = - \frac{1}{6} \\ x = - \frac{1}{6} \times ( - \frac{1}{5} ) \\ x = \frac{1}{30} [/tex]
proszę o naj :)
