Respuesta :

10(x - 3) = 5(3x - 8)
10x - 30 = 15x - 40
10x - 15x = -40 + 30
-5x = -10
x = -10/(-5)
x = 2
10x-30 = 15x-40

-30 = 5x-40

10 = 5x

X = 2