You have two expressions
(-6x-2)
and
(x+4)
You have to subtract the second expression from the first one so that:
[tex](-6x-2)-(x+4)[/tex]
The minus sign in front of the second equation can be considered as a -1, so you can solve the parenthesis as:
[tex]\begin{gathered} (-6x-2)-1(x+4) \\ (-6x-2)-1\cdot x-1\cdot4 \\ -6x-2-x-4 \end{gathered}[/tex]
Next you have to perform the corresponding operations:
[tex]\begin{gathered} -6x-x-2-4 \\ -7x-6 \end{gathered}[/tex]
