September 2018 2 12 Report

Rozwiąż algebraicznie podane układy równań

A)\left \{ {{x+y=-1 }\atop {2x-y=-7}}

B)\left \{ {{3x-y=7} \atop {2x+3y=1}} \right

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

D)\left \{ {{x-4=y} \atop {2x-4=2y}} \right

E)\left \{ {{x+y=5} \atop {2x=10-2y}} \right

PILNE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NA JUTRO!!!!!!!!!!!!!!!!!!!!!!!!!!!!


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