" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(-2 + 3w) / 5 = (10 + 4w) / 7 ----> dikali silang
(-2 + 3w) x 7 = (10 + 4w) x 5
-14 + 21w = 50 + 20w
21w - 20w = 50 + 14
w = 64