November 2018 1 9 Report

Rozwiąż układ równań metodą podstawiania.

a )

x-3y=-7

5x-2y=-22

b)

10x=y=7

4x=3y=-5

c)

10x-11y=10

x+12y=1

d)

-3x-4y=-7

6x-y=32


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