Question

Va rog ! Dau coroana
Rezolvati sistemul
3(2x-y)=x-y
x+5y=4(x+y)-1​

Answer 1

Răspuns:

$6x - 3y = x - y \\ 6x - x = - y + 3y \\ 5x = 2y \\ x = \frac{2}{5} y$

yeR

al 2 lea

$x + 5y = 4x + 4y - 1 \\ x - 4x = 4y - 1 - 5y \\ - 3x = - y - 1 \\ x = \frac{1}{3} y + \frac{1}{3}$

succes❗