8в+55=167
8в= 167-55
8в= 152
в=152:8
в= 19
7у+9-5у=13
2у= 13-9
2у=4
у= 4:2
у=2
(720+e)* 501=365730
(720+е)= 365730:501
(720+е)= 730
е= 730-720
е= 10
8e-14=6e+4
8е-6е= 14+4
2е= 18
е= 18:2
е= 9
(C-3) * 12 = 20-4 * (c +2)
12c-36=20-4c-8
12c-36=12-4c
16c=48
с= 48:16
c=3
8в+55=167
8в= 167-55
8в= 152
в=152:8
в= 19
7у+9-5у=13
2у= 13-9
2у=4
у= 4:2
у=2
(720+e)* 501=365730
(720+е)= 365730:501
(720+е)= 730
е= 730-720
е= 10
8e-14=6e+4
8е-6е= 14+4
2е= 18
е= 18:2
е= 9
(C-3) * 12 = 20-4 * (c +2)
12c-36=20-4c-8
12c-36=12-4c
16c=48
с= 48:16
c=3