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Rezolvati ecuatiile in Q: a) 2(x-1)+3=31-x b)x+2/3+x-1/4=2x+3/6

Răspuns :

a)2x-2+3=31-x
   2x+x=31-1
   3x=30
   x=10

b)2x + 2/3 - 1/4 = 2x + 3/6
Termenii cu x se reduc si ecuatia nu are solutii compatibile. Asta, daca ai scris tu corect...