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matematyka 1 z operonu zadanie (rozszerzony) zad 1 / 157 metoda podstawiania

b)

┌ 2x-5(y+1=-5

L -x+2(y+2)=4

d) ┌ 3x+y=4

L 6x-(1-2y)=7

f) ┌ √2x-5y=2,5

L 2y- √3x=6

oczywiście opis krok po kroku

Dziękuje,daje naj


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