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<p>{<i>a</i>1​+<i>b</i>1​=<i>c</i>1</p><p>​<i>a</i>2​+<i>b</i>2​=<i>c</i>2​​</p><p>Dengan:</p><p>a1=4,&nbsp;b1=−1,&nbsp;c1=5<i>a</i></p><p>a2=2,&nbsp;b2=3,&nbsp;c2=8</p><p>Langkah 1: Hitung determinan utama (Δ)</p><p>Δ=∣4−1</p><p>&nbsp; &nbsp; &nbsp;2 &nbsp;3∣ = (4)(3)−(2)(−1)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=12+2 =14 Δ</p><p>Langkah 2: Hitung Δx det utama</p><p>Δx = ∣5−1</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;8 &nbsp; 3∣ = (5)(3)−(8)(−1)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =15+8 = 23</p><p>Δy = |4 &nbsp;5</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2 &nbsp; 8| = (4)(8)-(2)(5)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 32-10 = 22</p><p>Langkah 3: Cari x dan y</p><p>x = 23/14&nbsp;</p><p>y = 22/14</p><p>&nbsp; &nbsp;= 11/7</p><p>Hasil dengan determinan:</p><p>x = 23/14, y = 11/7​<br>&nbsp;</p>