September 2018 1 17 Report

ROZWIĄŻ RÓWNANIE METODĄ PODSTAWIANIA...

a)

\left \{ {{x+2y=6} \atop {x-y=3}} \right

b)

\left \{ {{x+y=5} \atop {2x=5-2y}} \right

c)

\left \{ {{2x-y-1=0} \atop {x+2y-8+0}} \right


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