Question

Помогите дам 30 баллов​

Answer 1

$\displaystyle \frac{1}{3}x+\frac{2}{3}y-1=0\Rightarrow \qquad \frac{1}{3}x=-\frac{2}{3}y+1 \Rightarrow \\\\\\ \displaystyle \Rightarrow\qquad x=\dfrac{-\frac{2}{3}y+1}{\frac{1}{3}} \Rightarrow \qquad x=(-\frac{2}{3}y+1)\cdot3 \Rightarrow \qquad \\\\\\ \Rightarrow \qquad \boxed{x=-2y+3}$