z•49=927+935 (3724+p):54=69 992:54=8 (148-m)•31=1581 решите плиз до 22:30

Z•49=927+935 49z=1862z=38(3724+p):54=69 3724+p=3726p=3726-3724z=2992:54=8 (148-m)•31=1581 148-m=1581:31148-m=51m=148-51m=97