" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2a - 3b4a - 8b - 1a -11b
2a - 1a -3b 4a - 8b - 11b
a - 3b 4a - 19 b
b) -x -y -z
2x +y +z
-x + 3y - 2z
-------------------------
0 + 3y - 2z