I'm assuming your question was:
[tex]-2 = \frac{x}+2{6} [/tex]
And we need to solve for x. To do this, we must isolate it. So, you can multiply both sides by six to get rid of it:
[tex]-2*6 = x+2[/tex]
[tex]-12=x+2[/tex]
Subtract 2:
[tex]-12-2=x[/tex]
[tex]x=-14[/tex]
So, x = -14.
