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1 supra 3 x + 2 supra 3 x =3x

Răspuns :

1/3x+2/3x=3x⇒3/3x=3x⇒1/x=3x⇒3x^2=1⇒x^2=1/3⇒x=3/ radical din 3
(1+2)/3x=3x
3/3x=3x
1/x=3x
3x²=1
x²=1/3
x=√(1/3) → 1) x=-1/√3=-√3/3
2.) x=√3/3