160:(у+3) = 20160 = 20(у + 3)160 = 20у + 6020у = 100у = 5
216:(16-х) = 18216 = 18(16 - х)216 = 288 - 18х18х = 72х = 4
(8х + 91):7 = 218х + 91 = 7 * 218х + 91 = 1478х = 56х = 7
5у + 3(7у + 18) = 1065у + 21у + 54 = 10626у + 54 = 10626у = 52у = 2
8х + 4(13х + 32) = 3088х + 52х + 128 = 30860х + 128 = 30860х = 180х = 3
5(11х - 31) - 9х = 12155х - 155 - 9х = 12146х - 155 = 12146х = 276х = 6
Ответ: y = 5, x = 4, 7, 2, 3, 6
160:(у+3) = 20
160 = 20(у + 3)
160 = 20у + 60
20у = 100
у = 5
216:(16-х) = 18
216 = 18(16 - х)
216 = 288 - 18х
18х = 72
х = 4
(8х + 91):7 = 21
8х + 91 = 7 * 21
8х + 91 = 147
8х = 56
х = 7
5у + 3(7у + 18) = 106
5у + 21у + 54 = 106
26у + 54 = 106
26у = 52
у = 2
8х + 4(13х + 32) = 308
8х + 52х + 128 = 308
60х + 128 = 308
60х = 180
х = 3
5(11х - 31) - 9х = 121
55х - 155 - 9х = 121
46х - 155 = 121
46х = 276
х = 6
Ответ: y = 5, x = 4, 7, 2, 3, 6