Respostas

2013-06-08T18:19:15-03:00

y=5x-1

 

1+2x/3 = 5x-1+10

 

2x/3 - 5x = 10 - 1 - 1

 

2x/3 - 15x/3 = 30/3 - 3/3 -3/3

 

-13x = 24

 

x= -24/13