" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x+4y=-6 |×2| 2x+8y = -12
2x-2y=8 |×1| 2x-2y = 8 _ (dikurang)
10y = -20
y = -2
•Subtitusi ke persamaan satu
x+4y = -6
x+4(-2)=-6
x+(-8)=-6
x=-6+8
x= 2