Explanation:
If you plug 4 in for x into the equation, the equation becomes this:
[tex](4+2)-3(4-4)=6[/tex]
When you simplify the equation;
[tex](6)-3(0)=6[/tex]
Simplify it further,
[tex]6-0=6[/tex]
That is correct. 6 = 6
Hope that answered the question.