Penjelasan dengan langkah-langkah:
____________________
2x + y = 16
x + y = 9
y = 9 - x
2x + 9 - x = 16
x = 16 - 9
x = 7
y = 9 - 7
y = 2
nilai x = 7 dan y = 2 [Opsi B]
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Penjelasan dengan langkah-langkah:
____________________
2x + y = 16
x + y = 9
2x + y = 16
y = 9 - x
2x + 9 - x = 16
x = 16 - 9
x = 7
y = 9 - x
y = 9 - 7
y = 2
nilai x = 7 dan y = 2 [Opsi B]