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Olesea2004
a fost răspuns

alcatuiti doua ecuatii(una simpla si una complicata rezolvatile

Răspuns :

Cristinatibulca
2x-4=0
2x=4, x=4:2=2

5x-(12x+3)=3(x-2)+23
5x-12x-3=3x-6+23
-7x-3=3x+17
-7x-3x=17+3
-10x=20, x=-2

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