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m) [(1 + 2 x 3): a +5] : 6 = 9:9
30 dau coroana​


Răspuns :

Răspuns:

[(1 + 2 x 3): a +5] : 6 = 9:9

[(1+6):a+5]:6=1

(7:a+5)=1x6

7:a+5=6

7:a=6-5

7:a=1

a=7:1

a=7