Question

please solve it
it's urgent​

Answer 1

Here,

$\boxed{ \boxed{ \large \textbf{Value \: of \: x} \: \to \: \red{ \sf(- 23)}}}$

$\boxed{ \boxed{ \large \textsf{Value \: of \: y} \: \to \: \red{ \bf(- 23)}}}$

VERIFICATION :-

$\rm\circ \:\: {For \: \: {Eq}^{n} \: \: (i),}$

=> 12(-23) - 15(-23) = 69

=> - 276 + 345 = 69

=> 69 = 69

$\rm\circ \:\: {For \: \: {Eq}^{n} \: \: (ii),}$

=> 13(-23) - 17(-23) = 92

=> - 299 + 391 = 92

=> 92 = 92

$\small \rm \sout{NOTE} : \textsf{Refer to the attached picture for detailed solution.}$

Answer 2

$12x - 15y = 69 \purple{............(i)}$

$\boxed{x = \frac{69 + 15y}{12}}$

$13x - 17y = 92 \purple{..............(ii)}$

$\orange{......................................................}$

$\sf Putting \: value \: of \: x \: in \: (ii)~equation:-$

$13 \times (\frac{69 + 15y}{12} ) - 17y = 92$

$\frac{897 + 195y}{12} - 17y = 92$

$\frac{897 + 195y - 204y}{12} = 92$

$897 - 9y = 1104$

$- 9y = 1104 - 897$

$- 9y = 207$

$y = \frac{207}{ - 9}$

$\red{y = -23}$

$\orange{......................................................}$

$\sf Putting \: value \: of \: y \: in \:x:-$

$x = \frac{69 + 15 \times ( - 23)}{12}$

$x = \frac{69 - 345}{12}$

$x = \frac{ - 276}{12}$

$\red{x = - 23}$

$\orange{......................................................}$