[tex]2x + y = 15 \\ x - y = 1 \\ \\3x = 16 \\ x = \frac{16}{3} \\ \\ \ \ \ = > \frac{16}{3} - y = 1 \\ y = \frac{13}{3} [/tex]
De nada c:
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[tex]2x + y = 15 \\ x - y = 1 \\ \\3x = 16 \\ x = \frac{16}{3} \\ \\ \ \ \ = > \frac{16}{3} - y = 1 \\ y = \frac{13}{3} [/tex]
De nada c: