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a fost răspuns

rezolvati in multimea numerelor rationale ecuatiile a)7x+1=2x+11,b)2x-6=8x-15,c)14+7=20x-17,d)10x-41=3x-27,e)6x-2,(6)=0,(3)+5x

Răspuns :

a)⇒7x-2x=11-1⇒5x=10⇒x=2
b)⇒2x-8x--15+6⇒-6x=-9⇒x=3supra 2
c)⇒21-20x-17⇒-20x=-17-21⇒-20x=-38⇒x=19supra 10

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