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Se da egalitatea:
(9-64:8×a):5=25:5


Răspuns :

9/5-64:8*a/5=5
9/5-8a/5=5
-8a/5=-16/5
-8a=-16
a=2
(9-64:8*a):5=25:5
(9-8*a):5=5
9-8*a=5*5
9-8a=25
8a=-16
a=-16:8
a=-2
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