" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
-2x+4y=-12 (*5)
-----------------------
10x-2y= -6
-10x+20y= -60
------------------------
18y = -66
y= -66/18
y= -11/3
reemplazar en:
5x-y=-3
x= (-3+y)/5
x= {-3+(-11/3)}/5
x= - 4/3
verificación
5x-y=-3
5(-4/3)-(-11/3)= -3
-3=-3
espero te sirva!