Respuesta :

2x + 9 = 6x - 24 +15

2x -6x = -24 + 15 - 9

4x = -18

x = -18/4 = -4.5

Solution:

2x+9=6x-3(8-5)
2x+9=6x-24+15
2x-6x=-24+15-9
-4x=-18
x=-18/-4
x=4.5