If we're looking for the 'x' then follow these steps if you would like!
[tex]x - \frac{6}{-3} + x + \frac{9}{9} = ?
? = 0 [/tex]
[tex]Solve: \frac{1}{1} [/tex]
[tex]x - \frac{6}{-3} + x + 1 - x +4 = ? [/tex]
[tex] Solve: \frac{2}{-1} [/tex]
[tex]x - (-2) + x +1 - x + 4
[/tex]
[tex]x - 1 = 0 [/tex]
+1 +1
------ ------
x 1
[tex]x - 1 = x [/tex]
[tex]0 +1 = 1 [/tex]
[tex]x + 1 = 1x [/tex]
[tex]x = 1 [/tex]