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Afla nr necunoscut:3*8:6*7:4*3=c

Răspuns :

3•8:6•7:4•3=c
24:6•7:4•3=c
4•7:4•3=c
28:4•3=c
7•3=c
c=21
[tex]3*8:6*7:4*3=\ \textgreater \ \\ 4*7:4*3=\ \textgreater \ \\ 1*7*3=\ \textgreater \ \\ c=21 \\ Succes[/tex]