8b+55=167
8b=167 -55
8b=112
b=112/8
b=14
7y + 9 – 5y = 13
7y – 5y = 13 – 9
2y = 4
y = 2
(720+e)*501=365
раскроем скобки
360720+501e = 365
501e+360355 = 0
501e = -360355
e = -360355/501
е=-719,271457086
(k+2958):87=134
k+2958=134*87
k+2958=11658
k=11658-2958
k=8700
8b+55=167
8b=167 -55
8b=112
b=112/8
b=14
7y + 9 – 5y = 13
7y – 5y = 13 – 9
2y = 4
y = 2
(720+e)*501=365
раскроем скобки
360720+501e = 365
501e+360355 = 0
501e = -360355
e = -360355/501
е=-719,271457086
(k+2958):87=134
k+2958=134*87
k+2958=11658
k=11658-2958
k=8700