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Rezolvati in multimea R , ecuatiile : a) 3x-1/4-5x-2/7=11/14

Răspuns :

3x-1/4-5x-2/7=11/14⇒
numitorul comun este28
21x-7-140x-8/28=11/4⇒
119x-15/28=11/4⇒
4(119x-15)=28×11⇒
476x-60=308⇒476x=308+60⇒476x=368⇒x=368/476⇒se simplifica prin2⇒x=184/238
sucees