Answer:
[tex]x=0[/tex]
Step-by-step explanation:
[tex]-7x - 12 = - 7x + 3(-4 - x)[/tex]
Open up the parentheses
[tex]-7x - 12 = - 7x -12-3x[/tex]
-7x cancels out on both sides
[tex]-12 =-12-3x[/tex]
-12 cancels out on both sides
[tex]0=-3x\\x=0[/tex]
I hope this helps!
