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Rezolvati in R ecuatia:
2(x-1)+3(x+2)=5x+4


Răspuns :

2x-2+3x+6=5x+4
5x+4=5x+4
5x-5x=4-4
0=0
nu are solutii
2x-2+3x+6=5x+4

oricare ar fi x se respecta egalitatea