October 2018 1 30 Report

Doprowadź każde z równań do najprostszej postaci i rozwiąż układ równań metodą podstawiania.

a) ∫x-3(y-3x)=3x-4

2(2x-y)=4

b) ∫3(3+y)= -2x -1

2(x+1) = -2x-1

c)∫-2(x+2)+3y=-y-4

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

d)∫2(x-4y)=4x-y

4x-4y=-8


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