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a-27+50=9 ajuuuuutttoooooooooorrrr

Răspuns :

a-27+50=9
a-27=9-50
a-27=-41
a=-41+27
a=-14
A-27+50=9
A-27=9-50
A-27=-41
A=-41+27
A=-14

-14-27+50=
-41+50=9  verificare