Question

Решить систему уравнений
k=?
m=?

​

Answer 1

-0,2k=14

k+m=-8

k=14:(-0,2)

k+m=-8

k= -70

-70+m=-8

k= -70

m= 62

Answer 2

$\displaystyle\\\left \{ {{-0,2k=14} \atop {k+m=-8}} \right. \\\left \{ {{-0,2k=14} \atop {k=-8-m}} \right. \\\left \{ {{-0,2(-8-m)=14} \atop {k=-8-m}} \right. \\\left \{ {{-8-m=-70} \atop {k=-8-m}} \right. \\\left \{ {{m=62} \atop {k=-70}} \right.$