Question

Помогите! Я щас сдохну!

Answer 1

Ответ:

Объяснение:

$\displaystyle \left\{\begin{array}{ccc} 8x-3y=2 \\\\\ -4x+2y=20 \ \ | \cdot 2\end{array} \right. \Leftrightarrow \oplus \left\{\begin{array}{ccc} 8x-3y=2 \\\\\ -8x+4y=40 \end{array} \right.\Leftrightarrow \\\\\\ 8x-8x-3y+4y=40+2 \\\\ y=42 \\\\\\ x=\frac{20-2\cdot 42}{-4} =-\frac{64}{4} =-16 \\\\\\ \huge \boxed{\mathbb {OTVET}:\left \{ {{x=-16} \atop {y=42}} \right. }$