Yamini has 12 more 100 rupee notes than 50 rupee notes. She has R$ 3900
total, how many notes of each kind she has?​

Respuesta :

Answer:

18 of the 50, 30 of the 100.

Step-by-step explanation:

50x+100(x+12)

150x+1200=3900

150x=2700

x=18