Question

1341. [11x - 13y = -35, -17x + 2y = 36;
помогите, срочно! пожалуйста ​

Answer 1

$\displaystyle\bf\\\left \{ {{11x - 13y = - 35 \: \: | \times 17 } \atop { - 17x + 2y = 36 \: \: | \times 11 }} \right. \\ \displaystyle\bf\\ + \left \{ {{187x - 221y = - 595} \atop { - 187x + 22y = 396 }} \right. \\ \\ 22y - 221y = 396 - 595 \\ - 199y = - 199 \\ y = - 199 \div ( - 199) \\ y = 1 \\ \\ 11x - 13 \times 1 = - 35 \\ 11x - 13 = - 35 \\ 11x = - 35 + 13 \\ 11x = - 22 \\ x = - 22 \div 11 \\ x = - 2$

Ответ: ( - 2 ; 1 )