August 2018 2 42 Report
Rozwiąż równania. Znam wyniki, ale potrzeba mi rozwiązań.
a) 0,5(2-4x)=3-x wynik: x= -2
b) 12y-(y+5)=10y-1 wynik : y= 4
c) 2(u-5)+15=3(u-4)+10 wynik: u= 7

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