Решите систему уравнений:
а) -5x + 2y = 20,
2x-5y = - 8;
б)2(x + y) = - 2,
14 - 3(x - y) = 5y -x;
в) [tex] \frac{x}{3} + \frac{y}{2} = 5
[/tex]
5x - 11y = 1.
а) -5x + 2y = 20,
2x-5y = - 8;
б)2(x + y) = - 2,
14 - 3(x - y) = 5y -x;
в) [tex] \frac{x}{3} + \frac{y}{2} = 5
[/tex]
5x - 11y = 1.
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