8. Rozwiąż równania:
a)
[tex]\frac{1}{9}x = -2 | * 9\\x = -18[/tex]
b)
[tex]4y = 17 | : 4\\y = \frac{17}{4\\}\\y = 4 \frac{1}{4}[/tex]
c)
[tex]-\frac{7}{9}z = \frac{7}{9} \\z = \frac{7}{9} : \frac{7}{9} \\z = -1[/tex]
d)
[tex]-\frac{1}{6}u = \frac{1}{3}[/tex] | [tex]* (-6)[/tex]
[tex]u = -2[/tex]
e)
[tex]y * 12 = -36 | : 12\\y = -3[/tex]
f)
[tex]-3w = \frac{1}{6}| : (-3)\\w = - \frac{1}{18}[/tex]
g)
[tex]-4a = 0\\\frac{4a}{4} = \frac{0}{4}\\a = 0[/tex]
h)
[tex]-3b = \frac{3}{8}| * (-3)\\b = -\frac{9}{8} \\b = -1\frac{1}{8}[/tex]
i)
[tex]-11c = 88 | : (-11)\\c = -8[/tex]
