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2014-11-10T09:40:35+02:00
A+b=29
a-2=2(b-3)
a=2b-62
a=2b-4
2b-4+b=29
3b=29+4
3b=33
b=11
a=22-4=18

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2014-11-10T09:54:47+02:00
A+b=29
2+3=5
29-5=24
b=2a
a+2a=24
24:3=8
8+2=10 fete
8x2=16
16+3=19 baieti

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