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Rezolvati (5x-2):9=7
Repede va rog corect.


Răspuns :

5x-2=7×9
5x-2=63
5x=63+2
5x=65
x=65:5
x=13
5x-2=7×9
5x-2=63
5x=63+2
5x=65
x=13