Question

É URGENTE



{ 5x − 2y = 10
{−10x + 4y = 3

Answer 1

$\boxed{\begin{array}{l}\begin{cases}\sf 5x-2y=10\cdot(2)\\\sf -10x+4y=3\end{cases}\\+\underline{\begin{cases}\sf\diagdown\!\!\!\!\!\!10x-\diagdown\!\!\!\!\!\!4y=20\\\sf-\diagdown\!\!\!\!\!\!10x+\diagdown\!\!\!\!\!4y=3\end{cases}}\\\sf 0x=23\\\sf sistema~imposs\acute ivel.\end{array}}$