" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
a+3b=-7
1/3*(a+3b)=1/3a+b=-7/3
1/3a+b-2=-7/3-2=-13/3
5a+15b-31=5(a+3b)-31=5*(-7)-31=-66