" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
-x+5 = -x-9
5+9 = -x+x
14 = 0
-2x + 5 = -x + -9
-2x + 5-5 = -x + -9 - 5
-2x = -x + -14
-2x + x = -x + x + -14
-x = -14
-x : -1 = -14 : -x
x = 14