Respostas

2014-03-12T17:26:54-03:00
X+x+1=71
2x+1=71
2x=71-1
2x=70
x=70/2
x=35

1 5 1
2014-03-12T17:27:10-03:00
X = (x+y-1)/2

x = (71 -1) / 2

x= 70/2

x = 35
1 5 1