September 2018 1 16 Report

rozwiąż układy równań metodą podstawiania

1)

{0,4x+0,3y = 1,4

{ 0,1x+3y = 2,3

2)

{3x+4y = 1\frac{2}{3}

{6x+3y = 1\frac{1}{4}

3)

{ \frac{1}{2}x - \frac{3}{4}y = 0

{ \frac{2}{3} + 1\frac{1}{4}y = 9


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