а)
34x+17x=1173
51x = 1173
x = 1173 : 51
x = 23
б)
48у-25у=437
23y = 437
y = 437 : 23
y = 19
в)
7t+t+27=99
8t + 27 = 99
8t = 99 - 27
8t = 72
t = 72 : 8
t = 9
г)
15z-z-16=82
14z - 16 = 82
14z = 82 + 16
14z = 98
z = 98 : 14
z = 7
а)
34x+17x=1173
51x = 1173
x = 1173 : 51
x = 23
б)
48у-25у=437
23y = 437
y = 437 : 23
y = 19
в)
7t+t+27=99
8t + 27 = 99
8t = 99 - 27
8t = 72
t = 72 : 8
t = 9
г)
15z-z-16=82
14z - 16 = 82
14z = 82 + 16
14z = 98
z = 98 : 14
z = 7