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a-a:3-a:4=480
a=?
Ajutati-ma va rog!


Răspuns :

a-a/3-a/4=480
Aducem,la,numitor,comun(12)
12a-4a-3a=5760
5a=5760
a=1152
[tex]a- \frac{a}{3} - \frac{a}{4} =480\ \textless \ =\ \textgreater \ \frac{5a}{12} =480\ \textless \ =\ \textgreater \ a= \frac{12*480}{5} =\ \textgreater \ a=1152[/tex]