1)
_______________________________________________________
(это проверка)
=======================================================
2)
125.04-1.2x=5.04
1.2x=120
x=100
2) 1.2x+4.5x-0.7=1.01
5.7x = 1.71
x = 0.3
1)
_______________________________________________________
(это проверка)
=======================================================
2)
_______________________________________________________
1)
125.04-1.2x=5.04
1.2x=120
x=100
2) 1.2x+4.5x-0.7=1.01
5.7x = 1.71
x = 0.3