Question

Решите дам 50 баллов

Решите 6

Answer 1

$\left \{ {{x-y=1} \atop {\frac{x}{2}+\frac{y}{4}=\frac{2x-y}{3} }} \right.\\\left \{ {{x-y=1} \atop {6x+3y=8x-4y}} \right.\\ \left \{ {{2x-2y=2} \atop {2x-7y=0}} \right.\\ \left \{ {{5y=2} \atop {x = 1 +y}} \right. => y = \frac{2}{5}, x = \frac{7}{5}$

Answer 2

Смотри вложениееееееее