Respuestas

2013-05-29T04:03:12+02:00
X + 3 ( x - 1 ) = 6 - 4 ( 2 x + 3 )
x + 3 x - 3 = 6 - 8 x - 12
4 x + 8 x = 6 - 12 + 3
12 x = - 3
x = - 3/12
x = - 1/4