how do i solve this?

7(-6x - 14) = 12(45 - 2x)

 

Like this:

 

Do one side, then the other.

 

7(-6x - 14)

(7) * (-6x) (- 14)

7 * |(-6x)| (-14)

-1001 - 6x (Final Answer, Cannot go any further)