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2014-11-13T08:48:06+02:00
3a+10=a+14
3a-a=14-10
2a=4
a=4:2
a=2
3*2+10=2+14
6+10=14+2
2014-11-13T09:04:37+02:00
3a+10=a+14 3a-a=14-10 2a=4 a=4:2 a=2 3*2+10=2+14 6+10=14+2