August 2018 1 17 Report
ROZWIĄŻ UKŁAD RÓWNAŃ

a) 2x-y=10
x+5y=-17

b) 3m+n=9
2m-5n=-11

c) 4a-2=b
3a+7b=1,5

d) 5x=4-2y
4x+y=3

e) 6x-3y=9
x+5y=-9,5

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