December 2018 2 19 Report
Rozwiąż układy równań:

a) 2x-4y=18
y=5x

b) x+y=8
x-y=0

c) 3x+6y=12
x=-3y

d) 3x+y=10
2x-y=15

e) x+4y=37
2x+5y=53

f) 63-2x=7y
5x=14+3y

g) 3/4x-2y=1
1/3x-y=0

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