3x+5x+96=1568 357z-149z-1843=11469 3810+1206 : y=3877 k+12705:121=105
8х=1568-96 8х=1472 х=1472:8 х=184 208z=11469+1843 208z=13312 z=13312:208 z=64 1206:y=3877-3810 1206:y=67 y=1206:67 y=18 k+105=105 k=105-105 k=0