Respuesta :
2/3 is the answer
distribute the -2
you end up with -2x -2/3 + 9x = 4
combine the x's
7x - 2/3 = 4
7x = 4 2/3
x = 2/3
distribute the -2
you end up with -2x -2/3 + 9x = 4
combine the x's
7x - 2/3 = 4
7x = 4 2/3
x = 2/3