Question

Система ІТЕ ОСТАЛОСЬ 10 МЕНУТ ДО КАНЦА УРОКА ​

Answer 1

3;4

Объяснение:

y=2x-2

x/3+(2x-2)/4-2=0

x=3

y=6-2=4

Answer 2

$\begin{bmatrix}\frac{x}{3}+\frac{y}{4}-2=2\\ x-y=2\end{bmatrix}$

$\frac{x}{3}+\frac{y}{4}-2=2$

$\frac{x}{3}+\frac{y}{4}-2-\frac{y}{4}=2-\frac{y}{4}$

$\frac{x}{3}-2+2=2-\frac{y}{4}+2$

$\frac{x}{3}-2+2=2-\frac{y}{4}+2$

$\frac{x}{3}-2+2$

$=\frac{x}{3}$

$2-\frac{y}{4}+2$$=-\frac{y}{4}+4$

$\frac{x}{3}=-\frac{y}{4}+4$

$\begin{bmatrix}-\frac{3y}{4}+12-y=2\end{bmatrix}$

$\begin{bmatrix}-\frac{7y}{4}+12=2\end{bmatrix}$

$x=-\frac{3\cdot \frac{40}{7}}{4}+12$

$x=\frac{54}{7}$

$x=\frac{54}{7},\:y=\frac{40}{7}$