Б)8y+56+4y=80
8y+4y=80-56
12y=24
y=2
В)11p-4p-25=24
11p-4p=24+25
7p=49
p=7
Г)18d+5d-23=23
18d+5d=23+23
23d=46
d=2
2 3/4+1 10/19=2 57/76 +1 40/76=3 97/76=4 21/76
4 7/8:4 21/76=39/8*76/325=114/100=1,14
6х - 3 + 7х - 35 = 16 + 3 - 6х
6х + 6х + 7х = 16 + 3 + 3 + 35
19х = 57
х = 3
6х + 15 - 4 + 3х - 1 + 24 - 8х = 0
х = -10