What is the correct answer for 3x+4=9x+4

To find the answer you need to get x by itself. First subtract 3x from both sides, you end up with 4=6x+4. Now you need to subtract 4 from both sides, and you get 0=6x. Then you divide both sides by 6 and you get 0=x.

3x+4=9x+4

-3x - 3x

4=6x+4

-4 - 4

0=6x

:6 : 6

0=x

Your answer should be X=0