" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Jumlah data 10
2x + 61 / 10 = 8,1
2x + 61 = 81
2x = 81 - 61
2x = 20
x = 10
8.1 = (61+2x) : 10
8,1 x 10 = 61 + 2x
81 = 61+2x
81-61 = 2x
20 = 2x
x = 10 (A)