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jeruk = x
duku = y
3x+2y = 63000 ⇒ persamaan 1
x+3y = 36000
x = 36000-3y ⇒ persamaan 2
substitusi nilai x pada persamaan 1
3x + 2y = 63000
3(36000-3y) + 2y = 63000
108000 - 9y + 2y = 63000
108000 - 63000 = 7y
y = 6428
substitusi nilai y pada persamaan 2
x = 36000 - 3(6428) = 16716
jadi harga /kg
jeruk = Rp16.716,-
duku = Rp6.428,-
1x+3y=36000
3x+2y=63000
3x+9y=108000
-7x=45000
x 6500
3x+2y=63000
19500+2y=63000
63000-19500=2y
43500=2y
21750
eliminasi dan substitusi
maaf kalau ad kesalahan