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y = mangga
menghitung y =
3x + 4y = 12.500 | x5
5x + 3y = 13.500 | x3
---------------------------------
15x + 20y = 62.500
15x + 9y = 40.500
--------------------------------- ---
11y = 22.000
y = 2.000
menghitung x =
4y + 3x = 12.500 | x3
3y + 5x = 13.500 | x4
---------------------------------
12y + 9x = 37.500
12y + 20x = 54.000
--------------------------------- ---
-11x = -16.500
x = 1.500
Jawaban untuk pertanyaan:
4x + 2y = 4 (1.500 ) + 2 ( 2.000 ) = 6.000 + 4.000 = 10.000
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