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Aftimiuc
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k) (36-20:a×9): 8 = 0
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Răspuns :

MariaUwU

(36-20:a×9):8=0 / ×8

36-20:a×9=0 / +20:a×9

36=20:a×9 / :9

4 = 20:a / ×a

4a=20 / :4

a=5

Anne79
36-20:ax9=8x0
36-20:ax9=0
20:ax9=36-0

20:ax9=36
20:a=36:9
20:a=4
a=20:4
a=5

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