[tex]2x - 5 = 4x - 11[/tex]
[tex]2x - 4x = - 11 + 5[/tex]
[tex] - 2x = - 6[/tex]
[tex]x = 3[/tex]
[tex]3x - 7 = 5x - 18[/tex]
[tex]3x - 5x = 18 + 7[/tex]
[tex] - 2x = - 11[/tex]
[tex]x = \frac{11}{2} [/tex]
[tex]5x - 6 = 7x + 5[/tex]
[tex]5x - 7x = 5 + 6[/tex]
[tex] - 2x = 11[/tex]
[tex]x = - \frac{11}{2} [/tex]
