" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Misalsepatu = x
sandal = y
2x + 3y = 270.000 |×3
3x + 4y = 390.000 |×2
maka
6x + 9y = 810.000
6x + 8y = 780.000
---------------------------(-)
y = 30.000
subtitusi ke pers :
2x + 3y = 270.000
2x + 3(30.000) = 270.000
2x + 90.000 = 270.000
2x = 270.000 - 90.000
2x = 180.000
x = 90.000
nilai 4x + 5y
= 4(90.000) + 5 ( 30.000)
= 360.000 + 150.000
= 510.000
maaf kalo salah!!