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98-36:[64-(3×a+40):5+4]=96

Răspuns :

62:[64-(3a+40):5+4]=96 |×62
64-(3a+40):5+4=5952 |-4
64-(3a+40):5=5948 |+64
(3a+40):5=6002 |×5
3a+40=30010 |-40
3a=29970 |:3
a=9990