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<p><strong>Jawaban yang tepat adalah:</strong></p><p><strong>a. x = 9, y = 2</strong></p><p><strong>b. x = 1, y = 2</strong></p><p><strong>Penjelasan:</strong></p><p><strong>a. </strong>x - 2y = 5</p><p>&nbsp; &nbsp; x + y = 11</p><p>Jawab:&nbsp;</p><p><strong>• Metode Eliminasi</strong></p><p>x - 2y = 5</p><p>x + y = 11</p><p>—————— ¯</p><p>&nbsp; &nbsp; -3y = -6</p><p>&nbsp; &nbsp; &nbsp; &nbsp;y = -6/-3</p><p>&nbsp; &nbsp; &nbsp;&nbsp;<strong> y = 2</strong></p><p><strong>• Metode Substitusi&nbsp;</strong></p><p>x + y = 11</p><p>x + 2 = 11</p><p>x = 11 - 2</p><p><strong>x = 9</strong></p><p>Jadi, <strong>HP = (9,2)</strong></p><p>&nbsp;</p><p><strong>b.&nbsp;</strong></p><p>3x + y = 5</p><p>2x + 3y = 8</p><p>Jawab:</p><p><strong>• Metode Eliminasi</strong></p><p>3x + y = 5 &nbsp; &nbsp; |x2| &nbsp; 6x + 2y = 10</p><p>2x + 3y = 8 &nbsp; |x3| &nbsp; 6x + 9y = 24</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;———————— ¯</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;-7y = -14</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; y = -14/-7</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<strong> &nbsp; y = 2</strong></p><p><strong>• Metode Substitusi</strong></p><p>3x + y = 5</p><p>3x + 2 = 5</p><p>3x = 5 - 2</p><p>x = 3/3</p><p><strong>x = 1</strong></p><p>Jadi, <strong>HP = (1,2)</strong></p><p>&nbsp;</p><p>Semoga membantu dan semangat belajar!</p>