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Cum se rezolva exercitiu 3×1,76+x=12,12

Răspuns :

3×1.76+x=12.12⇒5.28+x=12.12⇒x=12.12-5.28⇒x=6.84
sucees
5,28+x=12,12=> x=12,12-5,28 => x= 6,84