А)409+Х:16=600,409+у:32=600,409+d:8=600. 409+у:32=600у:32=600-409у:32=191у=191*32у= 6112 б)х-450 *103=900,у-450*104=900,d-450*105=900. d-450*105=900 д- 42 525=900д=900+42525д= 43425 в)х*4 =160*120,у*60=160*120,d*80=160*120. х*4 =160*120х*4= 19200х= 4800