" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
X-Y=3 ...... II
''''''''''''''''''
2x = 4
x = 4/2
x = 2 ...... III
III en I
x + y = 1
2 + y = 1
y = 1-2
y = -1
cs = (2, -1)