[tex]1) - 3x = 1 \\ x = - \frac{1}{3} [/tex]
[tex]2) - x - 5x = 3 \\ - 6x = 3 \\ x = - \frac{ \not{3} }{ \not{6} } \\ x = - \frac{1}{2} [/tex]
[tex]3)18x = - 2 \\ x = - \frac{ \not{2} }{ \not{18} } \\ x = - \frac{1}{9} [/tex]
