" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2X-2Y=-12 》2X-2Y=-12
3X+Y =-2 |×2| 6X+2Y=-4
2X-2Y=-12|×1| 2X-2Y=-12 (+)
8X =-16
X =-2
* 3X + Y =-2
3(-2)+Y=-2
-6 + Y=-2
Y =-2+6
Y =4