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2014-01-23T18:05:43+02:00
[48x25+(540xA-82x5)x10]:100=797-232
[1200+(540xA-410)x10]=565x100
1200+5400xA-4100=56500
5400xA=56500+4100-1200
5400xA=59400
A=59400:5400
A=11
1 5 1