Question

Решить графически систему уравнений 5x-2y=9 7x+2y=3

Answer 1

$\left \{ {{5x-2y=9,} \atop {7x+2y=3;}} \right. \left \{ {{y=2,5x-4,5,} \atop {y=-3,5x+1,5;}} \right. \\ \begin{array}{c|cc} x&0&3 \\ y=2,5x-4,5&-4,5&3 \\ \end{array} \ \ \begin{array}{c|cc} x&-1&0 \\y=-3,5x+1,5&5&1,5 \\ \end{array} \\ (1;-2).$