Tolong cari hasil dan beserta caranya

<p>Misalkan s = salak dan m = manggis maka kalimat matematikanya menjadi :</p><p>3s + 2m = 42.000 &nbsp; &nbsp; (1)<br>5s + 3m = 84.000 &nbsp; &nbsp; (2)</p><p>&nbsp;</p><p>Eliminasi variabel m untuk mendapatkan nilai s</p><p>3s + 2m = 42.000 &nbsp; &nbsp; (dikali 3) --&gt; 9s + 6m &nbsp; &nbsp;= 126.000<br>5s + 3m = 84.000 &nbsp; &nbsp; (dikali 2) --&gt; <u>10s + 6m &nbsp;= 168.000</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; &nbsp; &nbsp;-s &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= -42.000</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;s = 42.000</p><p>Harga sekilo salak adalah Rp. 42.000</p><p>&nbsp;</p><p>Substitusikan s = 42.000 ke persamaan (1)</p><p>3s + 2m = 42.000&nbsp;</p><p>3(42.000) + 2m = 42.000&nbsp;</p><p>126.000 + 2m = 42.000</p><p>2m = 42.000 - 126.000</p><p>2m = -84.000</p><p>m = -84.000/2</p><p>m = -42.000</p><p>&nbsp;</p><p>tidak mungkin harga manggis negatif. Kemungkinan besar soal ini salah</p><p>&nbsp;</p>