Ответы и объяснения

2013-04-22T21:28:12+04:00

-3.6-1.5x-1-4x+0.8+0.4x-2=0

-5.1x-5.8=0

-5.1x=5.8

x= -58\51

x= -1(целая) 7\51

 

 

 

 

 

 

 

 

2013-04-23T02:19:21+04:00

-3.6-(1.5x+1)=4x-0.8-(0.4x-2)

-3.6-1.5x-1-4x+0.8+0.4x-2=0
-4.6-1.5x-4x+0.8+0.4x-2=0

-4.6-5.5x+0.8+0.4x-2=0

-3.8-5.5x+0.4x-2=0

-3.8-5.1x-2=0

-5.8-5.1x=0

x=-58\51

x=-1 7\51