September 2018 0 11 Report

rozwiąrz układy równań

1{-2x+3y=2

4x-6y=-2

2{3x+3y=3

x+y=1

proszę o rozwiązanie

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Odpowiedzi

Kamil699
negashiva
Najlepsza Odpowiedź!
negashiva

1.  \left { {{-2x + 3y = 2 \ \ \ \ \ \ \ \ \ *2} \atop {4x - 6y = -2}} \right \left { {{-4x - 6y = 4} \atop {4x - 6y = -2}} \right 0 = -2

 

2. \left{ {{3x + 3y = 3 \ \ \ \ \ \ :(-3)} \atop {x + y = 1}} \right \left{ {{-x - y = -1} \atop {x + y = 1 }   0 = 0


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