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x + 2y = 21500 . 2 2x + 4y = 43000
----------------------- -
-y = -5500
y = 5500
x + 2y = 21500
x + 2(5500) = 21500
x + 11000 = 21500
x = 21500 - 11000
x = 10500
dit ; 2x + 2y = 2(10500) + 2(5500) = 21000 + 11000 = 32000
50.000 - 32.000 = Rp. 18.000,00
apel =y
2x+3y=37500 *2 4x+6y=75000
1x+2y=21500 *3 3x+6y=64500 -
1x=10500
2x+3y=37500
2(10500)+3y=37500
21000+3y=37500
3y=37500-21000
3y=16500
y=16500/3
y=5500
jadi 2kg anggur +2kg apel=
2(10500)+2(5500)
21000+11000
32000
50000-32000=18000