December 2018 1 5 Report
Daję naj !!!
Rozwiąż algebraicznie układy równań dowolną metodą.
a)
{10x-3y=25
{5x-9y=-25

b)
{4x - 5/2y=3
{2,475=3/4y+1,5x

c)
{x/3+y/2=1
{-x/2 + y/5=1


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