Respostas

2014-08-03T13:08:50-03:00
 1/23 + 23/2 = x - 6/23 isolando o x
x = 
1/23 + 23/2 +6/23   tirando mmc 
x = (2.1)+(23.2)+(2.6) / 46     
x = 2+46+12 / 46
x= 60 / 12
x = 5