Question

СРОЧНО ДОПОМОЖІТЬ ДУЖЕ ТРЕБА!!!!!!!!!!​

Answer 1

$\displaystyle\bf\\\left \{ {{2x + 3y = - 7 \: \: | \times ( - 8) } \atop {15x + 8y = - 6 \: \: | \times 3 }} \right. \\ \displaystyle\bf\\ + \left \{ {{ - 16x - 24y = 56} \atop {45x + 24y = - 18 }} \right. \\ \\ 45x - 16x = 56 - 18 \\ 29x = 38 \\ x = \frac{38}{29} \\ x = 1 \frac{9}{29} \\ \\ 2 \times 1 \frac{9}{29} + 3y = - 7 \\ 2 \frac{18}{29} + 3y = - 7 \\ 3y = - 7 - 2 \frac{18}{29} \\ 3y = - 9 \frac{18}{29} \\ y = - 9 \frac{18}{29} \div 3 \\ y = - \frac{279}{29 \times 3} \\ y = - \frac{93}{29} \\ y = - 3 \frac{6}{29}$

Ответ: ( 1 9/29 ; - 3 6/29 )