a+b+c = 347 t
a-x = 98 000 kg
a-x = 98 t
a = 98 t+x
b-x = 120 000 kg
b-x = 120 t
b = 120+x
c-x = 990 q
c-x = 0,99 t
c - 0,99+x
98+x+120+x+0,99+x = 347
3x = 347 - (98+120+0,99)
3x = 347-218,99
3x = 128,01
x = 128,01:3
x = 42,67
a = 98+x = 98+42,67 = 140,67 t
b = 120+x = 120+42,67 = 162,67 t
c = 0,99+42,67 = 43,66 t
Proba
140.67+162.67+43.66 = 347 t