1499 (3)!!!!!!!!!!!!!!!!
5х-2(у+4)=0 5х-2(12х-23)-8=0 5х-24х+46-8=0 6(2х+3)-у=41 -19х=-38 х=2 5х-2у-8=0 12+2+18-у=41 12х+18-у=41 24+18-у=41 у=41-24-18 5х-2у-8=0 у=-1 у=12х-23