tentukan nilai x dan y dari persamaan berikut: [tex] \left[\begin{array}{ccc}3x&2\\4&-5y\end{array}\right] = \left[\begin{array}{ccc}x+8&2\\4&30\end{array}
Matematika
pwr123
Pertanyaan
tentukan nilai x dan y dari persamaan berikut:
[tex] \left[\begin{array}{ccc}3x&2\\4&-5y\end{array}\right] = \left[\begin{array}{ccc}x+8&2\\4&30\end{array}\right] [/tex]
[tex] \left[\begin{array}{ccc}3x&2\\4&-5y\end{array}\right] = \left[\begin{array}{ccc}x+8&2\\4&30\end{array}\right] [/tex]
1 Jawaban
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1. Jawaban retnoosay
3x = x + 8
3x - x = 8
2x = 8
x = 8/2
x = 4
-5y = 30
y = 30/-5
y = -6
x = 4 dan y = -6