" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
17-7y. 20-9y
------- ---------
3. 2
Multiplicar por método cruzado :
2(17-7y) = 3(20-9y)
34-14y=60-27y
-14y+27y=60-34
13y = 26
13y = 26/13
Y = 2
Remplazamos para sacar ambos valores "x , y " :
2x+18=20
2x= 20-18
2x=2
x= 1
Cs{ 2,1}