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94-3xd=82 ajutati ma




Răspuns :

94 - 3 × d = 82
3 × d = 94 - 82
3 × d = 12
d = 12 : 3
d = 4

94 - 3·d = 82

3·d = 94 - 82

3·d = 12

d = 12 : 3

d = 4