Question

Det a b c daca
A+b=12
b+c=12
A+c=13
va rog dau coroana
Pls

Answer 1

b=12-c

a=13-c

12-c+13-c=12

-2c=12-25

-2c=-13

c=13/2

b=12-13/2 b=(24-13)/2=11/2

a=13-13/2=(26-13)/2=13/2