September 2018 1 12 Report

ROZWIAZ UKŁADY RÓWNAŃ!

a) x=y

5x-y=4

b) y=2x+1

4x+y=13

c) 5y-x=3

x=3-y

d) a=b

2a+b=9

e) u=4v

5u-v=10

f) 3r=s

3r+s=24


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