Respuestas

2013-05-06T18:08:06+02:00

x-[5+3x-{5x-(6+x)}]=-3

 

x-[5+3x-{5x-6-x}]=-3

 

x-[5+3x-5x+6+x]=-3

 

x-5+3x+5x-6-x=-3

 

x+3x+5x-x=-3+6+5

 

      8x      =      8

 

       x      =    8/8

 

       x     =   1!!!!!! :)

 

2013-05-06T19:01:12+02:00

X- {5 +3X – [ 5X - ( 6 +  X )]} = -3

X- {5 +3X – [ 5X -  6 -  X ]} = -3

X- {5 +3X – [ 4X -  6 ]} = -3

X- {5 +3X –  4X +  6 } = -3

X- {11 –  X } = -3

X- 11 +  X  = -3

2X = -3 +11

X = 8/2

X = 4