Question

Daca a+ 2 x b = 5 si b + 2 x c , atunci calculati 5 x a + 13 x b + 6 x c
Ofer coroana

Answer 1

Răspuns:

a+2×b=5

3+2×1=5

b+2×c=5

1+2×2=5

5×3+13×1+6×2=40