Penjelasan dengan langkah-langkah:
*
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Penjelasan dengan langkah-langkah:
Bolpan = xBuku tulis = y.
*
2x + 5y = 21.5
x3
3x + 4y = 20 * 0
X2
6x + 15y = 64.5
6x + 8y = 40 * 0
74=24.500
y = 3.5
Substitusi
* 2x + 5y = 21 * 500
2x + 5(3500) = 21 * 500
2x + 17500 = 21.5
2x - 400x = 2000
Diberi x loy= 2000 + 10(3500) =2000+35 000=37500