Respostas

2013-09-18T21:28:36-03:00
 \frac{x}{5}  \fr+ \frac{x-1}{3}= \frac{2x-1}{2} - \frac{1}{1}  (mmc de 5,3,2=30)
 6x+10-1=30x-1-30
6x-30x=-31+11
-24x=-20 .(-1) 
24x=20 
x=  \frac{20}{24}  
 x=0,83
letra c
1 5 1