a)
[tex] \frac{3}{2} x - \frac{1}{2} = 0 \\ \frac{3}{2} x = \frac{1}{2} \\ x = 3[/tex]
b)
[tex]3(x + 1) + 5 = 6x + 4 \\ 3x + 3 + 5 = 6x + 4 \\ 3x - 6x = 4 - 3 - 3 \\ - 3x = - 2 \\ x = \frac{2}{3} [/tex]
c)
[tex] \frac{x \sqrt{3 - 1} }{ \sqrt{3} } = 0 \\ x \sqrt{3 - 1} = 0 \\ x = 0 \div \sqrt{3 - 1} \\ x = 0 [/tex]