1)5y-72=48-3y
5y+3y=48+72 8y=120 y=15
3)
(к+2958):87=134
к+2958=11658
к=11658-2958
к=8700
4)
1) 8Y = 120
Y = 15
2) 53X - 50933 = 3975
53X = 54908
X = 1036
3) K + 2958 = 11658
K = 8700
4) 2T = 84
T = 42
