Question

(5x +y = 8,
(3x - y = 0.​

Answer 1

Ответ:

$(1;3)$

Объяснение:

$\left \{ {{5x+y=8} \atop {3x-y=0}} \right.$  

$8x=8$

$\boxed{x=1}$

$\left \{ {{5*1+y=8} \atop {x=1}} \right. \left \{ {{y=8-5} \atop {x=1}} \right. \left \{ {{y=3} \atop {x=1}} \right.$

$\boxed{y=3}$