Am de facut urmatoarele ecuatii: 1. Rezolvati in R ecuatiile: a) 2x+6-8x=4x-6 b) x=[tex] \frac{1}{2} [/tex]x+[tex] \frac{1}{3} [/tex]x+[tex] \frac{1}{6} [/tex]x+[tex] \frac{1}{7} [/tex]
2x+6-8x=4x-6⇒ -6x-4x=-6-6⇒ -10x=-12 inmultim cu -1⇒x=12/10 simplificam cu 2⇒ x=6/5 b)x=x/2+x/3+x/6+1/7⇒x-x/2-x/3-x/6=1/7⇒aducem la acelasi numitor- numitorul va fi 6⇒ (6x-3x-2x-x)/6=1/7⇒(6x-6x)/6=1/7⇒0=1/7 nu are solutie
