Question

РЕШИТЕ ПОЖАЛУЙСТА, ВМЕСТЕ С ЧЕРТЕЖОМ​

Answer 1

Ответ:   x=1 .

$M(1;-2)\ \ ,\ \ \ l_1:2x-y-1=0\ \ ,\ \ \ \ l_2:x+3y-4=0\\\\\left\{\begin{array}{l}2x-y=1\\x+3y=4\ |\cdot (-2)\end{array}\right\ \oplus \ \left\{\begin{array}{l}2x=y+1\\-7y=-7\end{array}\right\ \ \left\{\begin{array}{l}2x=2\\y=1\end{array}\right\ \ \left\{\begin{array}{l}x=1\\y=1\end{array}\right\ \ A(1;1)$

$A\in l\ \ ,\ \ M\in l\ \ ,\ \ \ l:\dfrac{x-x_1}{x_2-x_1}=\dfrac{y-y_1}{y_2-y_1}\\\\\\\dfrac{x-1}{1-1}=\dfrac{y-1}{-2-1}\ \ ,\ \ \ \dfrac{x-1}{[\, 0\, ]}=\dfrac{y-1}{-3}\ \ ,\ \ \ \underline {\ x=1\ }\\\\\\ili\ \ \ l:\left\{\begin{array}{l}x=x_0+mt\\y=y_0+nt\end{array}\right\ \ \left\{\begin{array}{l}x=1\\y=1-3t\end{array}\right$