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Rezolva ecuatia: 2×+1supra3=2

Răspuns :

2×+1supra3=2
2x+1=3
×2
2x+1=6
2x=6-1
2x=5
x=5/2

verificare:
2×5/2+1supra =5+1supra 3=6supra3=2

(2x+1)/3=2
2x+1=2•3
2x+1=6
2x=6-1
2x=5
x=5/2=2,5.