[tex]\frac{1}{4} x^ + \frac{7}{3} = \frac{2}{7} x^ - \frac{1}{4}[/tex]
[tex]\frac{1}{4}x - \frac{2}{7}x = - \frac{7}{3} - \frac{1}{4} [/tex]
[tex]\frac{1*7}{4*7}x - \frac{2*4}{7*4}x = - \frac{7*4}{3*4} - \frac{1*3}{4*3} [/tex]
[tex]\frac{7}{28}x - \frac{8}{28}x = - \frac{28}{12} - \frac{3}{12} [/tex]
[tex]- \frac{1}{28}x = - \frac{31}{12} [/tex]
[tex]-x = - \frac{31}{12}*\frac{28}{1}[/tex]
[tex]-x = - \frac{868}{12}[/tex]
[tex]-x = - \frac{217}{3}[/tex]
[tex]x = \frac{217}{3}[/tex]
