January 2019 1 15 Report
1. Oblicz x z proporcji :
A) x/4=3/5
B) x-2/x+3=1/2
C) 2x/x+1=2/3
D) x-4/3x=1/9
2.Z równości a+x/b=y , gdzie y≠0 i b≠0 wyznacz : a)b b)x
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