October 2018 1 9 Report

Rozwiaz uklad rownan metoda przeciwnych wspolczynnikow. Z gory dziekuje.

a)

7x-3y/5 = 5x-y/3 - x+y/2

3(x-1) = 5(y+1)

b)

2x-3y-1=x-5y/2-1/2

1 3/4y-1/4x=3y/2+1/4


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