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8÷{212-5×[a+3×(5×6-17)]}=96
DAU COROANA!!!!!


Răspuns :

8:{212-5•[a+3•(5•6-17)]} =96/:8
212-5•[a+3•(5•6-17)] =12/-212
-5•[a+3•(5•6-17)] =-200/+5
a+3•(5•6-17)=-195
a+3•13=-195
a+39=-195
a=-156