September 2018 1 10 Report

rozwiąż układy równań :

a) x=-y
x-y= 6

b) y=x+3

2x+y=9

c) x-4y=15

y=4x

d) y=-2x-1

x=y+7

e) -3x=2y

y=1-x

f) 5x+6y=8

x=4y-1

prosze to na jutro


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