(24-x)*5-32=48 720 у: 7+80)=6 200- (48: t)*45=20 (y*40+60): 3=140

(24-x)*5-32=48120-5 х-32=48-5 х=48-120+32-5 х=-40 х=8 720 у: 7+80)=6 у/7+80=720/6 у/7+80=120 у/7=120-80 у/7=40 у=40*7 у=280 200- (48: t)*45=20-48/t*45=20-200-48/t*45=-18048/t*45=18048/t=180/4548/t=4t=48/4t=12 (y*40+60): 3=140y*40+60=140*3y*40+60=420y*40=420-60y*40=360y=360/40y=9