Tentukan penyelesaian spldv dibawah Eliminasi 2x+7y 2x+3y=1000

<p>Jawaban yang benar adalah {(875, -250)}</p><p>&nbsp;</p><p>Pembahasan :</p><p>2x + 7y = 0 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(1)</p><p>2x + 3y = 1000 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (2)</p><p>&nbsp;</p><p>Eliminasi variabel x untuk mendapatkan nilai y</p><p>2x + 7y = 0</p><p><u>2x + 3y = 1000&nbsp;</u> _</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;4y = -1000</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;y = -250</p><p>&nbsp;</p><p>Eliminasi variabel y untuk mendapatkan nilai x</p><p>2x + 7y = 0 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (dikali 3) &nbsp;--&gt; 6x + 21y = 0</p><p>2x + 3y = 1000 &nbsp; &nbsp; &nbsp; (dikali 7) &nbsp;--&gt; <u>14x + 21y = 7000&nbsp;</u> _</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; -8x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= -7000</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;x = 875</p><p>Jadi, nilai x = 875 dan y = -250</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p>