Answer:
[tex]6x + 4 = 5 - (x + 1)[/tex]
open the bracket, [ distribution property ]
[tex]6x + 4 = 5 - x - 1 \\ 6x + 4 = 4 - x[/tex]
collect like terms:
[tex]6x + x = 4 - 4 \\ 7x = 0 \\{ \boxed{ \boxed{ x = 0}}}[/tex]