3(3d-1)-(72d+1)=
9d-3-72d-1= -63d-4
3(3d-1)-(72d+1)= 3*3d-3 - 73d-1= 9d-3-72d-1= - 63d-3-1=-63d-4
Объяснение:
–63d-4
3(3d-1)-(72d+1)=
9d-3-72d-1= -63d-4
3(3d-1)-(72d+1)= 3*3d-3 - 73d-1= 9d-3-72d-1= - 63d-3-1=-63d-4
Объяснение:
–63d-4