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2014-04-15T16:08:44-03:00
2 1
--- x -----
y 4
1.y = 2.4
y = 8

1. 3
---- x -----
4 Z
1.z = 3.4
z = 12

w. 6
---- x -----
1. 3
3.w = 6
w = 6/3
w = 2

x. 2
-- x ---
2. 1
1.x = 2.2
x= 4
1 5 1