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[tex] \frac{x}{2} - \frac{y}{7} = \frac{15}{14} \\ \frac{x}{3} + \frac{y}{6} = \frac{3}{2} [/tex]
[tex] \frac{x}{2} - \frac{y}{7} = \frac{15}{14} \\ \frac{x}{3} + \frac{y}{6} = \frac{3}{2} [/tex]
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Ответ:
7х-2у=15
2х+у=9 |×2
7х-2у=15
4х+2у=18
11х=33
х=3
х=3
6+у=9
у=3
х=3
у=3