rozwiąż układy równań::)
{u+5=v
{⅓u=½v /·6
{v=u+5
{2u=3v
{2u=3(u+5)
{2u=3u+15
{-u=15
{u=-15
{2·(-15)=3v
{-30=3v
{v=-10
{2u=5+v
{2v=2+u
{2u-5=v
{2(2u-5)=2+u
{2u-10=2+u
2u-u=2+10
{u=12
{2·12-5=v
{v=19
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{u+5=v
{⅓u=½v /·6
{v=u+5
{2u=3v
{2u=3(u+5)
{2u=3v
{2u=3u+15
{2u=3v
{-u=15
{2u=3v
{u=-15
{2·(-15)=3v
{u=-15
{-30=3v
{u=-15
{v=-10
{2u=5+v
{2v=2+u
{2u-5=v
{2(2u-5)=2+u
{2u-5=v
{2u-10=2+u
{2u-5=v
2u-u=2+10
{2u-5=v
{u=12
{2·12-5=v
{u=12
{v=19