i’ll have a go but sorry if i’m wrong
firstly, expand the bracket 2(2+3x). multiply everything inside the bracket by 2 and get 4+6x.
put that in the equation:
6x+4=4+6x
put all the x’s on one side and the numbers on the other
6x-6x=4-4
0=0
there are no solutions (i think….)