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12ori4x-5ori4x=7ori2la12

Răspuns :


[tex]12 \times 4x - 5 \times 4x = 7 \times 2 {}^{12} = [/tex]
[tex]48x - 20x = 7 \times 4096 = [/tex]
[tex]28x = 28672 = [/tex]
[tex]x = 1024[/tex]