Question

Реши систему уравнений {-0,5k=12 k+m=-6

Answer 1

{ -0,5k = 12,

{ k + m = -6,

из 1 ур-ия:

к = -24,

из 2 ур-ия:

к = -6 - m,

-6 - m = -24,

m = 24 - 6,

m = 18

Answer 2

$\left \{ {{-0,5k=12} \atop {k+m=-6}} \right.\\\\\left \{ {{k=-24} \atop {-24+m=-6}} \right\\\\\left \{ {{k=-24} \atop {m=-6+24}} \right. \\\\\left \{ {{k=-24} \atop {m=18}} \right.\\\\Otvet:\boxed{(-24;18)} .$