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2,5*x+ [tex] \frac{9}{2} [/tex]*x=2*x+3
Va rog frumos!!!!


Răspuns :

2,5*x+9/2*x=2*x+3
nmc=2
5x/2+9x/2=2x+3
14x/2-2x=3
7x-2x=3
5x=3
x=3/5=0,6