" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a.
K = 2(P+L)
K = 2(4x+1+3x+2)
K = 2(7x+3)
K = 14x+6
b.
K = 14x+6
48 = 14x+6
-14x = 6-48
-14x = -42
x = 3