Question

Решите систему уравнений ​

Answer 1

Ответ:вот

Объяснение:

Answer 2

$\displaystyle \left \{ {{x-y=1} \atop {\frac{x}{2}+\frac{y}{4}=\frac{2x-y}{3} }} \right.\\\\\left \{ {{x=1+y} \atop {\frac{x}{2}+\frac{y}{4}=\frac{2x-y}{3} }} \right.\\\\\frac{1+y}{2}+\frac{y}{4}=\frac{2(1+y)-y}{3}\\\\y=\frac{2}{5}\\\\x=1+\frac{2}{5}\\\\x=\frac{7}{5}\\\\(x,y)=(\frac{7}{5},\frac{2}{5})$