rozwiaz: zalacznik na dole
poczebuje na dzis.plissss
zad 1
b
zad2
c
zad3
a 3y
b -3y+1
zad4
a
zad5
4b+2a
zad6
zad7
31
zad8
2,4
zad9
2a+a+a+20°=180°
zad10
2a+2a+a=25
a=5
zad11
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zad 1
b
zad2
c
zad3
a 3y
b -3y+1
zad4
a
zad5
4b+2a
zad6
a
zad7
31
zad8
2,4
zad9
2a+a+a+20°=180°
zad10
2a+2a+a=25
a=5
zad11
n+(n+1)+(n+2)+(n+3)+(n+4)=5n+10=5(n+2)