Respostas

2013-09-18T15:24:10-03:00
X=5y
X+y=60
5y+y=60
60/6
Y=10
X=5.10
X=50
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2013-09-18T15:26:17-03:00
X+y=60
x=5y

5y+y=60
6y=60
y=60/6
y=10


x=5y
x=5.10
x=50
2 5 2