September 2018 1 31 Report

Rozwiąż metodą przeciwnych współczynników.

1. 3x-5y=7
0,5x_y=1

2. 3x+2y=4
-5x-0,5y=3

3/ 4x+4y=2
3x-3y=0

4. 0,5x+0,25y=4
0,3x_0,2y=2,4


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