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2014-11-11T11:01:02+02:00
M6+M4=415 bilete
 M6+M4=2160 lei
6x+4y=2160
 6x+4y=2160|:2
3x+2y=1080
x+2x+2y=1080
 x+2(x+y)=1080
x+y=415
  x+2(x+y)=1080
 x=1080-(2•415)
 x=250
x+y=415
 y= 415-x
 y= 415-250
y=165
6x+4y=2160
 6•250+4•165= 1500+660= 2160

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