" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x-2y=8 --- 2y = x-8
pakai eliminasi dapat y = 4
substitusikan x+4=20, x=16
didapatkan x = 16 dan y =4
x-2y = 8
dikurangi 3y=12
y=12/3 = 4
x+y= 20
x+ 4 =20
x = 20-4 = 16