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2015-02-13T22:16:12+08:00

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Manuel Anselmo=10x
Andrew=x
10x+20=2(x+20)+4
10x+20=2x+40+4
10x+20=2x+44
8x=24
x=3
present age=30
andrew=3
subtract 3 from the father
Manuel=27(before andrew was born).
Hope this helps =)
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