1) -15у-27у=269+109;
-42y=378;
y=-9
2) -27x-29x=152-600
-56x= -448
x=8
1) -15y-109=269+27y; -42y=378; y=-9
2) -27х+600=29х+152; -56=-448; x =8
1) -15у-27у=269+109;
-42y=378;
y=-9
2) -27x-29x=152-600
-56x= -448
x=8
1) -15y-109=269+27y; -42y=378; y=-9
2) -27х+600=29х+152; -56=-448; x =8